A traditional Chinese medicine external ointment for treating burns and scalds and preventing scar formation and a preparation method thereof

Abstract

The application discloses a traditional Chinese medicine external use ointment for treating burns and scalds and preventing scar formation and a preparation method thereof, and belongs to the technical field of traditional Chinese medicine external use preparations. The ointment takes earth chicken egg oil and camellia fruit as an oil phase matrix, is matched with Sanqi head, broken copper coin grass, saxifraga, Paris polyphylla Smith var. chinensis, grass pepper, fishy-smelling herb, and multiple traditional Chinese medicines of tiger, and is supplemented with earth honey to be blended, and medicinal borneol is used for transdermal analgesia. The ointment is prepared by using a low-temperature impregnation process. The application has the advantages of strict prescription, mild preparation process, maximum retention of heat-sensitive effective components of medicines, effects of clearing heat and resolving toxins, eliminating swelling and pain, removing corruption and promoting tissue regeneration, and preventing scars, remarkable curative effects on burns and scalds of various degrees, burns, and non-healing wounds, fast analgesic effect, short healing cycle, no obvious hyperplastic scars and pigmentation after healing, high safety, good stability, and suitability for clinical and home treatment of burns and scalds.

Description

Technical Field

[0001] This invention belongs to the field of traditional Chinese medicine external preparation technology, specifically relating to a traditional Chinese medicine external ointment for treating burns and preventing scar formation and its preparation method. Background Technology

[0002] Burns are common soft tissue injuries to the skin, often caused by heat, chemicals, or electric current. They are classified by depth into first-degree, superficial second-degree, deep second-degree, and third-degree burns. Improper treatment of superficial burns can easily lead to infection and pigmentation; deep burns can cause necrosis of the entire skin layer and subcutaneous tissue, resulting in a long healing period and a high likelihood of hypertrophic scarring. In severe cases, they can lead to limb dysfunction and significantly impact the patient's quality of life.

[0003] Currently, clinical treatment options for burns are mainly divided into two categories: Western medicine and traditional Chinese medicine, both of which have significant shortcomings. Clinically, antibiotics are routinely used in combination with topical antibacterial drugs such as silver sulfadiazine, along with debridement and skin grafting. This approach carries the risk of antibiotic resistance and can only control infection, with limited effect on promoting wound repair and tissue regeneration. The scarring rate after healing of deep burns is as high as 60%, and the treatment is costly and complex, making it unsuitable for primary care settings and home treatment of minor burns.

[0004] There are many types of commercially available Chinese herbal burn ointments, but they generally suffer from slow pain relief, poor healing effect on deep burns, and weak scar prevention. Most products use high-temperature decoction processes, which cause a large amount of heat-sensitive active ingredients such as borneol and volatile oils to decompose and be lost, resulting in a significant decrease in efficacy.

[0005] While some traditional folk remedies for burns have certain clinical effects, their formulas lack standardized specifications, their preparation processes are crude, their quality is unstable, and the content of active ingredients is uncontrollable. Moreover, most of these remedies only focus on wound healing and do not address the mechanisms of scar formation, so obvious scars and pigmentation are still likely to remain after healing, failing to meet the dual clinical needs of "healing + scar prevention".

[0006] Therefore, developing a traditional Chinese medicine ointment with a scientifically formulated composition, a gentle preparation process, significant analgesic and tissue-regenerating effects, and effective prevention of scar formation is a technical problem that urgently needs to be solved in the field of burn treatment. Summary of the Invention

[0007] To address the problems raised in the background art, the purpose of this invention is to provide a traditional Chinese medicine external ointment for treating burns and preventing scar formation, and its preparation method. This invention features a rigorous formulation and a gentle preparation process, maximizing the retention of the heat-sensitive active ingredients of the medicine. It possesses the effects of clearing heat and detoxifying, reducing swelling and relieving pain, removing necrotic tissue and promoting tissue regeneration, and preventing scarring. It has significant therapeutic effects on burns of all degrees, scalds, and non-healing wounds. It provides rapid analgesia, has a short healing cycle, and leaves no obvious hypertrophic scars or pigmentation after healing. It is highly safe and stable, suitable for clinical and home-based burn treatment.

[0008] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: A traditional Chinese medicine ointment for treating burns and preventing scar formation, comprising the following components: 2.5–4.5 parts of local egg oil, 0.3–0.8 parts of Panax notoginseng root, 0.6–1.4 parts of Copper Coin Grass, 0.6–1.4 parts of Saxifraga stolonifera, 2.5–4.5 parts of Camellia japonica fruit, 0.3–0.8 parts of Paris polyphylla, 1.0–2.0 parts of Buckwheat, 1.0–2.0 parts of Black Pepper, 1.0–2.0 parts of Houttuynia cordata, 2.0–4.0 parts of Polygonum cuspidatum, 3.0–5.0 parts of local honey, and 1.0–3.0 parts of borneol.

[0009] Further specifying, by weight, the raw materials consist of the following components: 3.5 parts of free-range egg oil, 0.5 parts of Panax notoginseng root, 1 part of Copper Coin Grass, 1 part of Saxifraga stolonifera, 3.5 parts of Camellia fruit, 0.5 parts of Paris polyphylla, 1.5 parts of buckwheat, 1.5 parts of black pepper, 1.5 parts of Houttuynia cordata, 3 parts of Polygonum cuspidatum, 4 parts of free-range honey, and 2 parts of borneol.

[0010] Further specified, the Panax notoginseng root is a dried and pulverized fine powder with a particle size of 100-200 mesh; The ingredients mentioned, including *Pennywort*, *Saxifraga stolonifera*, *Paris polyphylla*, *Fagopyrum esculenta*, *Peperomia spp.*, *Houttuynia cordata*, and *Polygonum cuspidatum*, are all ultrafine powders of dried medicinal materials with a moisture content of ≤8%.

[0011] Further specifying, the "free-range egg oil" is egg yolk oil extracted by low-temperature boiling of egg yolks, and the "camellia fruit" is refined vegetable oil extracted by cold pressing of camellia seeds.

[0012] Further specified, the ointment is a uniform and fine semi-solid preparation with a pH value of 5.5 to 7.0 and a particle size of ≤180μm.

[0013] A method for preparing a traditional Chinese medicine external ointment for treating burns and preventing scar formation includes the following steps: S1 Raw material pretreatment: The following herbs are dried, pulverized, and sieved: Panax notoginseng root, Copper coin grass, Saxifraga stolonifera, Paris polyphylla, buckwheat, black pepper, Houttuynia cordata, and Polygonum cuspidatum. They are then mixed evenly to obtain a mixed medicinal powder. S2 Low-temperature impregnation: Mix the local egg oil and camellia fruit evenly, heat to 35-45℃, add the mixed medicinal powder, keep warm and stir to impregnate, and obtain the medicinal oil phase; S3 matrix blending: Add raw honey to the medicated oil phase, keep warm and stir until the system is homogeneous to obtain the ointment intermediate; S4 Borneol Addition: Cool the ointment intermediate to 30-40℃, add fine borneol powder, stir in the dark until completely dissolved, and cool to room temperature to obtain the finished traditional Chinese medicine external ointment.

[0014] Further specifying that in S1, each medicinal material is pulverized and passed through a 120-mesh standard sieve, and the mixed powder is dried at a low temperature below 60°C until the moisture content is ≤8%.

[0015] Further specified, in S2, the heat preservation and impregnation time is 20-40 minutes, the stirring speed is 30-60 r / min, and the impregnation process is kept away from light throughout.

[0016] Further specifying that in S4, the borneol is pre-ground into a fine powder of 150 mesh, added and stirred for 10-20 minutes until completely dissolved, and the temperature during the stirring process does not exceed 40°C.

[0017] Furthermore, the finished ointment, after being filled, shall be stored in a light-proof, airtight environment at 5–10°C.

[0018] The beneficial effects of this invention are: This invention is based on the core principles of "clearing heat and detoxifying, reducing swelling and relieving pain, removing necrotic tissue and promoting tissue regeneration, and preventing scarring." The formula features a rational combination of oil-based ingredients, medicinal components, harmonizing agents, and penetration enhancers: Egg oil and camellia fruit serve as the oil phase matrix, providing both skin-moisturizing and tissue-regenerating effects; Panax notoginseng root, Paris polyphylla, and Polygonum cuspidatum clear heat and detoxify, disperse blood stasis and relieve pain; Pennywort, Saxifraga stolonifera, and other herbs clear heat and dampness, reduce swelling and detoxify; Buckwheat invigorates blood circulation, reduces swelling and improves microcirculation; Honey harmonizes the other ingredients and nourishes the wound; Borneol clears heat and relieves pain, and promotes transdermal penetration. The entire formula works synergistically, covering all aspects of treatment: anti-inflammatory, analgesic, antibacterial, tissue-regenerating, and scar-preventing.

[0019] For first-degree and superficial second-degree burns, pain is significantly relieved within 10 minutes of application, blisters completely subside within 2 days, and the wound heals with scab formation in 5-7 days; deep second-degree and third-degree burns heal in about 15 days; and deep burns heal in 25-35 days. After healing, there are no obvious hypertrophic scars or severe pigmentation sequelae. It also has good repair effects on various types of burns and slow-healing wounds.

[0020] The traditional high-temperature decoction process is replaced by a low-temperature impregnation process at 35-45℃, which avoids the decomposition of heat-sensitive active ingredients such as alkaloids, flavonoids, and volatile oils at high temperatures. The borneol is added under low-temperature conditions to maximize the retention of its volatile active ingredients, which not only ensures rapid analgesia but also improves the overall efficacy.

[0021] This formula is made entirely of traditional Chinese medicine, containing no antibiotics, hormones, or heavy metals. It has no obvious toxic side effects or irritation and is suitable for people of all ages. For external application, apply 2-3 times daily, with a thickness of less than 1mm on the affected area. It is easy to use and suitable for both clinical treatment and home use. Furthermore, when stored in a light-proof, airtight container at 5-10℃, this formula has a shelf life of over 3 years with no significant decrease in efficacy, making it suitable for large-scale production and long-term storage. Attached Figure Description

[0022] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 This is a schematic diagram of an embodiment of a traditional Chinese medicine external ointment for treating burns and preventing scar formation, and its preparation method, according to the present invention. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0024] like Figure 1 As shown, the present invention provides a traditional Chinese medicine external ointment for treating burns and preventing scar formation, the raw materials of which are composed of the following components: 2.5-4.5 parts of local egg oil, 0.3-0.8 parts of Panax notoginseng root, 0.6-1.4 parts of Copper Coin Grass, 0.6-1.4 parts of Saxifraga stolonifera, 2.5-4.5 parts of Camellia japonica fruit, 0.3-0.8 parts of Paris polyphylla, 1.0-2.0 parts of Buckwheat, 1.0-2.0 parts of Black Pepper, 1.0-2.0 parts of Houttuynia cordata, 2.0-4.0 parts of Polygonum cuspidatum, 3.0-5.0 parts of local honey, and 1.0-3.0 parts of borneol.

[0025] In the practical application of this embodiment, the raw materials are composed of the following components by weight: 3.5 parts of local egg oil, 0.5 parts of Panax notoginseng root, 1 part of Copper Coin Grass, 1 part of Saxifraga stolonifera, 3.5 parts of Camellia fruit, 0.5 parts of Paris polyphylla, 1.5 parts of buckwheat, 1.5 parts of black pepper, 1.5 parts of Houttuynia cordata, 3 parts of Polygonum cuspidatum, 4 parts of local honey, and 2 parts of borneol.

[0026] In the practical application of this embodiment, the Panax notoginseng head is a dried and pulverized fine powder with a particle size of 100-200 mesh; The ingredients mentioned, including *Pennywort*, *Saxifraga stolonifera*, *Paris polyphylla*, *Fagopyrum esculenta*, *Peperomia spp.*, *Houttuynia cordata*, and *Polygonum cuspidatum*, are all ultrafine powders of dried medicinal materials with a moisture content of ≤8%.

[0027] In the practical application of this embodiment, the free-range egg oil is egg yolk oil extracted by low-temperature boiling of egg yolks, and the camellia fruit is refined vegetable oil extracted by cold pressing of camellia seeds.

[0028] In the practical application of this embodiment, the ointment is a uniform and fine semi-solid preparation with a pH value of 5.5 to 7.0 and a particle size of ≤180μm.

[0029] A method for preparing a traditional Chinese medicine external ointment for treating burns and preventing scar formation includes the following steps: S1 Raw material pretreatment: The following herbs are dried, pulverized, and sieved: Panax notoginseng root, Copper coin grass, Saxifraga stolonifera, Paris polyphylla, buckwheat, black pepper, Houttuynia cordata, and Polygonum cuspidatum. They are then mixed evenly to obtain a mixed medicinal powder. S2 Low-temperature impregnation: Mix the local egg oil and camellia fruit evenly, heat to 35-45℃, add the mixed medicinal powder, keep warm and stir to impregnate, and obtain the medicinal oil phase; S3 matrix blending: Add raw honey to the medicated oil phase, keep warm and stir until the system is homogeneous to obtain the ointment intermediate; S4 Borneol Addition: Cool the ointment intermediate to 30-40℃, add fine borneol powder, stir in the dark until completely dissolved, and cool to room temperature to obtain the finished traditional Chinese medicine external ointment.

[0030] In the practical application of this embodiment, in step S1, each medicinal material is pulverized and passed through a 120-mesh standard sieve, and the mixed powder is dried at a low temperature below 60°C until the moisture content is ≤8%.

[0031] In the practical application of this embodiment, in step S2, the heat preservation and impregnation time is 20 to 40 minutes, the stirring speed is 30 to 60 r / min, and the impregnation process is kept away from light throughout.

[0032] In the practical application of this embodiment, in step S4, the borneol is pre-ground into a fine powder of 150 mesh, added and stirred for 10-20 minutes until completely dissolved, and the temperature during the stirring process does not exceed 40°C.

[0033] In the practical application of this embodiment, after the finished ointment is filled, it is sealed and stored under light-proof, airtight conditions at 5-10°C. Example

[0034] This embodiment is a preferred formulation of a traditional Chinese medicine external ointment. By weight, the raw materials are: 3.5 parts of local egg oil, 0.5 parts of Panax notoginseng root, 1 part of Copper Coin Grass, 1 part of Saxifraga stolonifera, 3.5 parts of Camellia fruit, 0.5 parts of Paris polyphylla, 1.5 parts of buckwheat, 1.5 parts of black pepper, 1.5 parts of Houttuynia cordata, 3 parts of Polygonum cuspidatum, 4 parts of local honey, and 2 parts of borneol.

[0035] The preparation method is as follows: S1 Raw Material Pretreatment: The roots of Panax notoginseng, the whole plant of Lysimachia christinae, the whole plant of Saxifraga stolonifera, the rhizome of Paris polyphylla, the rhizome of Fagopyrum esculenta, the whole plant of Ligustrum lucidum, the whole plant of Houttuynia cordata, and the rhizome of Polygonum cuspidatum were washed separately, dried at a low temperature of 60℃, pulverized and passed through a 120-mesh sieve, and mixed evenly according to the formula to obtain a mixed medicinal powder with a moisture content of 6.2%. S2 Low-temperature impregnation: Add local egg oil and camellia fruit to the mixing tank according to the ratio, mix evenly, heat to 40°C in a water bath, add mixed medicinal powder, keep warm and stir at 40r / min for 30min, and keep away from light throughout the process to obtain the medicinal oil phase; S3 matrix blending: Add raw honey to the drug-containing oil phase according to the ratio, keep at 40℃ and continue stirring for 15 minutes until the system is uniform and fine, to obtain the oil ointment intermediate; S4 Borneol Addition: Cool the ointment intermediate to 35°C in a water bath, add pre-ground borneol powder (150 mesh), stir in the dark for 15 minutes until the borneol is completely dissolved, cool to room temperature, and then fill into the package to obtain the finished ointment.

[0036] Finished product testing: The ointment is uniform and smooth, without any grainy texture, with a pH value of 6.2 and a particle size of ≤150μm, meeting the quality requirements for topical ointments. Example

[0037] This embodiment is a low-dose topical ointment of traditional Chinese medicine. By weight, the raw materials are: 2.5 parts of local egg oil, 0.3 parts of Panax notoginseng root, 0.6 parts of Copper Coin Grass, 0.6 parts of Saxifraga stolonifera, 2.5 parts of Camellia fruit, 0.3 parts of Paris polyphylla, 1.0 part of Buckwheat, 1.0 part of Black Pepper, 1.0 part of Houttuynia cordata, 2.0 parts of Polygonum cuspidatum, 3.0 parts of local honey, and 1.0 part of borneol.

[0038] The preparation method is as follows: S1 Raw Material Pretreatment: The roots of Panax notoginseng, the whole plant of Lysimachia christinae, the whole plant of Saxifraga stolonifera, the rhizome of Paris polyphylla, the rhizome of Fagopyrum esculenta, the whole plant of Ligustrum lucidum, the whole plant of Houttuynia cordata, and the rhizome of Polygonum cuspidatum were washed separately, dried at a low temperature of 60℃, pulverized and passed through a 120-mesh sieve, and mixed evenly according to the formula to obtain a mixed medicinal powder with a moisture content of 6.2%. S2 Low-temperature impregnation: Add local egg oil and camellia fruit to the mixing tank according to the ratio, mix evenly, heat to 40°C in a water bath, add mixed medicinal powder, keep warm and stir at 40r / min for 30min, and keep away from light throughout the process to obtain the medicinal oil phase; S3 matrix blending: Add raw honey to the drug-containing oil phase according to the ratio, keep at 40℃ and continue stirring for 15 minutes until the system is uniform and fine, to obtain the oil ointment intermediate; S4 Borneol Addition: Cool the ointment intermediate to 35°C in a water bath, add pre-ground borneol powder (150 mesh), stir in the dark for 15 minutes until the borneol is completely dissolved, cool to room temperature, and then fill into the package to obtain the finished ointment.

[0039] Finished product testing: The ointment is uniform and smooth, without any grainy texture, with a pH value of 6.2 and a particle size of ≤150μm, meeting the quality requirements for topical ointments. Example

[0040] This embodiment is a high-dose topical ointment of traditional Chinese medicine. By weight, the raw materials are: 4.5 parts of local egg oil, 0.8 parts of Panax notoginseng root, 1.4 parts of Copper Coin Grass, 1.4 parts of Saxifraga stolonifera, 4.5 parts of Camellia fruit, 0.8 parts of Paris polyphylla, 2.0 parts of buckwheat, 2.0 parts of black pepper, 2.0 parts of Houttuynia cordata, 4.0 parts of Polygonum cuspidatum, 5.0 parts of local honey, and 3.0 parts of borneol.

[0041] The preparation method is as follows: S1 Raw Material Pretreatment: The roots of Panax notoginseng, the whole plant of Lysimachia christinae, the whole plant of Saxifraga stolonifera, the rhizome of Paris polyphylla, the rhizome of Fagopyrum esculenta, the whole plant of Ligustrum lucidum, the whole plant of Houttuynia cordata, and the rhizome of Polygonum cuspidatum were washed separately, dried at a low temperature of 60℃, pulverized and passed through a 120-mesh sieve, and mixed evenly according to the formula to obtain a mixed medicinal powder with a moisture content of 6.2%. S2 Low-temperature impregnation: Add local egg oil and camellia fruit to the mixing tank according to the ratio, mix evenly, heat to 40°C in a water bath, add mixed medicinal powder, keep warm and stir at 40r / min for 30min, and keep away from light throughout the process to obtain the medicinal oil phase; S3 matrix blending: Add raw honey to the drug-containing oil phase according to the ratio, keep at 40℃ and continue stirring for 15 minutes until the system is uniform and fine, to obtain the oil ointment intermediate; S4 Borneol Addition: Cool the ointment intermediate to 35°C in a water bath, add pre-ground borneol powder (150 mesh), stir in the dark for 15 minutes until the borneol is completely dissolved, cool to room temperature, and then fill into the package to obtain the finished ointment.

[0042] Finished product testing: The ointment is uniform and smooth, without any grainy texture, with a pH value of 6.2 and a particle size of ≤150μm, meeting the quality requirements for topical ointments.

[0043] Effect verification test Time to significant pain relief 8~12 minutes 30-45 minutes Time for mild grade II blisters to subside 1.5~2 days 3-4 days Healing time of superficial second-degree wounds 5-7 days 8~10 days Healing time of deep second-degree wounds 12-15 days 18~22 days Third-degree wound healing time 25-30 days 35~42 days Post-healing scarring rate 3.3% 28.3% The experimental results show that the traditional Chinese medicine external ointment prepared by this invention is significantly better than commercially available conventional products in terms of pain relief speed, wound healing speed, and scar prevention effect, thus verifying the technical effect of this invention.

[0044] In summary, this invention achieves therapeutic effects based on traditional Chinese medicine external treatment theory and combined with modern pharmacological research: 1. The saponins of Panax notoginseng, anthraquinones of Polygonum cuspidatum, and volatile oils of Houttuynia cordata can inhibit the release of inflammatory factors and reduce redness and exudation of the wound. At the same time, they have a significant inhibitory effect on common pathogens of burns such as Staphylococcus aureus and Escherichia coli, thus preventing wound infection.

[0045] 2. Borneol can be quickly absorbed through the skin, blocking local nerve endings and relieving wound pain in a short time after application; Panax notoginseng root and Paris polyphylla relieve swelling and pain by improving local microcirculation and reducing tissue edema.

[0046] 3. The lecithin and vitamin A in free-range egg oil can promote the proliferation and differentiation of epithelial cells; the unsaturated fatty acids in camellia fruit can moisturize the wound and protect the wound barrier; multiple Chinese medicines work together to promote the growth of granulation tissue, accelerate the scab formation and epithelialization of the wound, and shorten the healing cycle.

[0047] 4. This formula can inhibit excessive proliferation of fibroblasts, reduce abnormal collagen deposition, improve local microcirculation of the wound, and prevent abnormal proliferation of connective tissue, thereby reducing the incidence of hypertrophic scars and pigmentation, and achieving the effect of leaving no obvious scars after healing.

[0048] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A traditional Chinese medicine ointment for treating burns and preventing scar formation, characterized in that, The raw materials consist of the following components: 2.5-4.5 parts of free-range egg oil, 0.3-0.8 parts of Panax notoginseng root, 0.6-1.4 parts of Copper Coin Grass, 0.6-1.4 parts of Saxifraga stolonifera, 2.5-4.5 parts of Camellia japonica fruit, 0.3-0.8 parts of Paris polyphylla, 1.0-2.0 parts of buckwheat, 1.0-2.0 parts of black pepper, 1.0-2.0 parts of Houttuynia cordata, 2.0-4.0 parts of Polygonum cuspidatum, 3.0-5.0 parts of free-range honey, and 1.0-3.0 parts of borneol.

2. The traditional Chinese medicine ointment for treating burns and preventing scar formation according to claim 1, characterized in that, By weight, the raw materials consist of the following components: 3.5 parts of local egg oil, 0.5 parts of Panax notoginseng root, 1 part of Copper Coin Grass, 1 part of Saxifraga stolonifera, 3.5 parts of Camellia fruit, 0.5 parts of Paris polyphylla, 1.5 parts of buckwheat, 1.5 parts of black pepper, 1.5 parts of Houttuynia cordata, 3 parts of Polygonum cuspidatum, 4 parts of local honey, and 2 parts of borneol.

3. The traditional Chinese medicine ointment for treating burns and preventing scar formation according to claim 1, characterized in that: The Panax notoginseng heads are dried and pulverized into fine powder with a particle size of 100-200 mesh; The ingredients mentioned, including *Pennywort*, *Saxifraga stolonifera*, *Paris polyphylla*, *Fagopyrum esculenta*, *Peperomia spp.*, *Houttuynia cordata*, and *Polygonum cuspidatum*, are all ultrafine powders of dried medicinal materials with a moisture content of ≤8%.

4. The traditional Chinese medicine ointment for treating burns and preventing scar formation according to claim 1, characterized in that: The "local egg oil" is egg yolk oil extracted by boiling egg yolks at low temperature, and the "camellia fruit oil" is refined vegetable oil extracted by cold pressing camellia seeds.

5. A traditional Chinese medicine ointment for treating burns and preventing scar formation according to claim 1, characterized in that: The ointment is a uniform and fine semi-solid preparation with a pH value of 5.5 to 7.0 and a particle size of ≤180μm.

6. A method for preparing a traditional Chinese medicine external ointment for treating burns and preventing scar formation, characterized in that, Includes the following steps: S1 Raw material pretreatment: The following herbs are dried, pulverized, and sieved: Panax notoginseng root, Copper coin grass, Saxifraga stolonifera, Paris polyphylla, buckwheat, black pepper, Houttuynia cordata, and Polygonum cuspidatum. They are then mixed evenly to obtain a mixed medicinal powder. S2 Low-temperature impregnation: Mix the local egg oil and camellia fruit evenly, heat to 35-45℃, add the mixed medicinal powder, keep warm and stir to impregnate, and obtain the medicinal oil phase; S3 matrix blending: Add raw honey to the medicated oil phase, keep warm and stir until the system is homogeneous to obtain the ointment intermediate; S4 Borneol Addition: Cool the ointment intermediate to 30-40℃, add fine borneol powder, stir in the dark until completely dissolved, and cool to room temperature to obtain the finished traditional Chinese medicine external ointment.

7. The method for preparing a traditional Chinese medicine external ointment for treating burns and preventing scar formation according to claim 6, characterized in that: In step S1, each medicinal material is pulverized and passed through a 120-mesh standard sieve, and the mixed powder is dried at a low temperature below 60°C until the moisture content is ≤8%.

8. The method for preparing a traditional Chinese medicine external ointment for treating burns and preventing scar formation according to claim 6, characterized in that: In step S2, the heat preservation and impregnation time is 20-40 minutes, the stirring speed is 30-60 r / min, and the impregnation process is kept away from light throughout.

9. A method for preparing a traditional Chinese medicine external ointment for treating burns and preventing scar formation according to claim 6, characterized in that: In step S4, the borneol is pre-ground into a fine powder of 150 mesh, added, and stirred for 10-20 minutes until completely dissolved. The temperature during the stirring process does not exceed 40°C.

10. A method for preparing a traditional Chinese medicine external ointment for treating burns and preventing scar formation according to claim 6, characterized in that: After the finished ointment is filled, it is stored in a sealed container under light-proof, airtight conditions at 5–10°C.

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