36 results about "Upper respiratory disease" patented technology

The invention relates to a health food, in particular to a bulbus fritilariae snow pear paste prepared from fruits and Chinese medicinal materials added with rock candies, which belongs to the field of food processing. The bulbus fritilariae in the formulation is beneficial to moistening the lung and resolving the phlegm, and the modern pharmacological studies show that fritillaria contains various alkaloids, can expand tracheal smooth muscles and reduce tracheal secretion, and has the function of relieving cough and removing the phlegm. The pear has the functions of moistening the lung and dissolving the phlegm, and clearing heat and promoting fluid, and is suitable for heat syndrome cough and irritating dry cough, and the pear can relieve the discomfort symptoms through regular consumption. The bulbus fritilariae is crushed and then is steamed with snow pear and the rock candies to obtain a paste; and the bulbus fritilariae snow pear paste can effectively treat upper respiratory diseases through regular consumption.

The invention relates to a yew incense and an air perfuming method thereof. By heating a yew incense perfume, the quality of indoor air can be effectively improved, the damage of some beneficial components in the yew incense can be prevented, and some components in the yew incense can be allowed to enter into the air quickly. The yew incense disclosed herein comprises yew, American ginseng, and gynostemma pentaphyllum which have anti-tumor and anti-cancer effect, and radix isatidis, honeysuckle flower and forsythia which have the effects of clearing heat and detoxifying, inhibiting virus, and preventing influenza and upper respiratory diseases, and rhizoma atractylodis and agastache rugosa which have the effects of resolving dampness, regulating stomach and repelling foulness with aromatics. The yew incense disclosed herein has the effects of raising the air purification quality, resisting mosquito and resisting insects, and can be spread through air to achieve the effects of raising the immune capability, resisting tumor, preventing cancer, inhibiting virus, preventing influenza and upper respiratory diseases, clearing heat and detoxifying, resolving dampness, regulating stomach, protecting cardiovascular system, and the like.

The invention discloses a lung-heat clearing mixture for treating various pneumonia, upper respiratory diseases, bronchitis, tonsillitis and other disease symptoms caused by bacterial infection and viral infection and a preparation method thereof. The lung-heat clearing mixture consists of eleven traditional Chinese medicines of scutellaria, isatidis root, honeysuckle, fructus forsythiae, herba taching, dandelion, rhizoma paridis, pericarpium citri reticulatae, balloonflower root, armeniaca amara and folia eriobotryae. The medicine materials are decocted for several times; volatile oil is collected; medicine liquid is mixed, is condensed, is added with edible essence and the like, is adjusted to certain amount and is evenly stirred, subpackaged and sterilized to obtain a finished product. The lung-heat clearing mixture emphasizes on coldness and coolness, aims at pathogenesis, clears away heat and toxic materials, mainly eliminates the pathogenic factor to effect a permanent cure, uses a product for dissipating phlegm and relieving cough, reaches lung vessels and disperses and descends lung qi to alleviate the symptoms; and the medicines have clear master-slave, mutual correspondence, precise compatibility and proper stipulation, so as to have the effects of clearing away the lung-heat, reliving heat, detoxicating, relieving sore throat, dissipating phlegm and relieving cough; and clinical experiments show that the total effective rate reaches over 90 percent.

The present invention discloses a health-care tea as companion of cigarette and its preparation method. It is a Chinese medicine extract prepared by using green tea as carrier and using gynostemma pentaphylla, arctium seed and licorice as main raw material, after having been purified said Chinese medicine extract is mixed with honey, then sprayed in the tea produced according to conventional process so as to obtain the invented health-care tea. Said invented health-care tea possesses the functions of degrading cigarette toxin, raising immunity of human body, resisting bacteria and relieving inflammation and suppressing cough and transforming phlegm, etc. and has special therapeutic effect for curing diseases of upper respiratory tract diseases, stomatitis, bronchitis and pneumonia, etc.

The invention relates to health-care food, in particular to Erdong bulbus fritilariae cream which is prepared by processing bulbus fritilariae with two uses of medicine and food, and the like, and belongs to the technical field of food processing. The bulbus fritilariae in the formulation is good at moistening the lung and eliminating phlegm. The modern pharmacological research proves that fritillary bulb contains various alkaloids, can enlarge bronchus smooth muscles and reduce the secretion of tracheas, and has the antitussive and expectorant function; dwarf lilyturf root in the formulation is sweet, slightly bitter and slightly cold, has the functions of realizing channel tropism of the heart, the lung and the stomach, nourishing Yin and promoting the production of body fluid, and moistening the lung and clearing away heart-fire, and is used for treating lung dryness and dry cough, consumptive cough, body fluid deficiency and thirst, vexation and insomnia, intrinsic heat and wasting-thirst, intestine dryness and constipation, and pharyngeal diphtheria; and asparagus has the functions of nourishing Yin, moisturizing dryness-syndrome, clearing away the lung-heat and reducing pathogenic fire, and is used for treating fever due to yin deficiency, hemoptysis, consumptive lung disease, pulmonary abscess, throat abscess and wasting-thirst. The Erdong bulbus fritilariae cream is prepared by decocting and concentrating the Chinese medicines with two uses of medicine and food and adding honey, can effectively prevent and treat upper respiratory diseases by frequent taking, is more effective to the elderly and the children, and can moisten the lung and eliminate phlegm and improve the immunity of the human body by frequent taking.

The present invention relates to a composition comprising alpha-hydroxy propionic acid linked to any pharmaceutically acceptable vehicle, such as pure serum, 1,2,3-propanetriol, 1,2-propanediol resp. a mixture thereof or optionally a pharmaceutically acceptable catalyzer. Alpha-hydroxy-propionic acid is used in medicine in many dilutions for the treatment of sinusitis and other upper respiratory diseases. The present invention is characterized by a formulation adapted to nasal delivery for the treatment of upper respiratory disorders.

The invention discloses a medical atomizing treatment device. According to the medical atomizing treatment device disclosed by the invention, graduations are arranged on the side surface of a drug cup, and a piston is arranged in the drug cup and is sequentially connected with a telescopic rod and a rotating plug; and the position of the piston can be adjusted by the rotating plug and the telescopic rod. The position of the piston is adjusted according to the drug consumption, and a patient only needs to fill the drug cup every time without observing the liquid surface once again, so that theproblem that an old person charges drugs difficultly is solved. A two stage atomizing flow including rotational flow atomizing and spray head atomizing is set to prepare large granule fog drops, so that the treatment of upper respiratory diseases is realized; a three stage atomizing flow including rotational flow atomizing, collision atomizing and spray head atomizing is set to prepare microparticle fog drops, so that the treatment of lower respiratory diseases is realized; the three stage atomizing flow is adopted, so that the particle dimension of the fog drops can be effectively reduced, and microparticle fog drops can be prepared; and according to the type of the diseases, two atomizing flows can be chosen, the and targeting performance of disease treatment is clear. The medical atomizing treatment device disclosed by the invention has the characteristics of being quantitative in drug charging, simple and convenient in drug injection, friendly to the old people, clear in targetingperformance, and good in atomizing effects, the microparticle fog drops can be prepared, and the preparation manner of the fog drops can be chosen.

The invention relates to a drug for treating upper respiratory tract diseases, particularly to a drug for treating acute and chronic laryngopharyngitis, upper respiratory tract infection (ordinary cold) and viral upper respiratory tract infection, and belongs to the field of medicines. The drug is prepared by using animals, plants and Chinese herbal medicines as raw materials. The drug is prepared from the following raw materials in parts by weight: 10-20 parts of charcoal grilled toads, 10-20 parts of radix scutellariae, 10-20 parts of phellodendron, 10-20 parts of rhizoma coptidis, 10-20 parts of small centipeda herbs, 10-20 parts of dandelions, and 10-20 parts of ixeris sonchifolia. The drug is prepared from the following steps: firstly, drying and crushing raw materials into 700-mesh fine powder, screening the crushed raw materials, mixing the screened raw materials according to the proportion, performing disinfection treatment, and blending the disinfected raw materials to obtain the drug. Through the adoption of the drug disclosed by the invention, the problems that the treatment effect is poor, the drug takes effect slowly, the pain of a patient is aggravated and the like existing in the prior art are solved, the pain of respiratory tract infection can be relieved, and the drug has a better curative effect especially for a patient on whom the chronic laryngopharyngitis is repeatedly attacked.

The invention relates to the Chinese herbal medical tea which comprises the raw materials of sarcandra glabra of 15-50wt percent, cyrtomium fortunei J of 10-40wt percent, common achyranthes herb of 10-40wt percent, isatis root of 8-50wt percent, rhizoma imperatae of 5-40wt percent, radix sophorae tonkinensis of 2-10wt percent, millet sprout of 30-50wt percent, honeysuckle of 6-15wt percent and mint of 2-6wt percent. The raw materials are decocted in water and the herbal tea is thereby obtained. The herbal tea of the invention has the functions of clearing heat, dehumidification, purging fire, relieving restlessness, cooling blood, detoxifying, strengthening spleen, dispelling summerheat and preventing and healing upper respiratory diseases and digestive tract diseases, for example, cold, heat stroke, mouth dryness, bitter taste, throat pain, inappetence, etc.

The invention discloses a Glidescope which comprises a handle and an arc-shaped laryngoscopic lens, wherein the handle is connected with the rear end part of the arc-shaped laryngoscopic lens; a tongue depressor is arranged at the front end part of the laryngoscopic lens, the external surface of one side facing the arc-shaped center of the laryngoscopic lens is circular arc-shaped, and the radius of the circular arc ranges from 80 mm to 120 mm; the length of the tongue depressor ranges from 28 mm to 43 mm, and the included angle between the tongue depressor and the vertical plane of the axial mean line of the handle ranges from 33 degrees to 48 degrees; and the distance between the front end point of the tongue depressor and the axial mean line of the handle ranges from 100 mm to 130 mm. The Glidescope has the benefits of having high matching degree with the structural characteristics of upper respiratory tracts of the yellow race, obviously improving the clinical practicality, safety and reliability and facilitating operation of clinicians; and moreover, a camera can image clearly, so that a doctor can make accurate judgment as per the images quickly, the success rate and accuracy rate of trachea cannula and diagnosis and treatment on upper respiratory diseases are improved, the treatment time is shortened, and the pain of a patient is relieved.

The invention relates to a targeting magnetic nano-selenium element traditional Chinese medicine anion fabric functional neck shielding, belonging to the technical field of the production of neck shielding by using healthy textiles fabric, and aiming at replacing gauze masks to prevent and cure upper respiratory tract infections of rhinitis, faucitis and the like. In the invention, magnetic nano-particles carrying element traditional Chinese medicine anion are taken as medicament carriers and are absorbed and permeated into a human body through the breath of skin, mouth and nose; under the action of exterior magnetic field, effective element molecules are moved to pathological change parts through the magnetic navigation of the nano-particles so as to achieve the effect of releasing medicament element molecules by locking a pathological change target. The targeting magnetic nano-selenium element traditional Chinese medicine anion fabric functional neck shielding treats the upper respiratory tract infections of acute or chronic rhinitis, faucitis and the like by the permeation and breath of the mouth, the nose and the skin, removes the fears caused by wearing gauze mask for a long time to workers and stressed learners, and achieves the purpose of high-efficiently curing diseases by wearing neck shielding.

The invention relates to a traditional Chinese medicine aerosol for treating upper respiratory diseases of poultry and a preparation method of the traditional Chinese medicine aerosol, and belongs tothe field of animal husbandry and veterinary medicine. The traditional Chinese medicine aerosol for treating the upper respiratory diseases of poultry is prepared from the raw materials in parts by weight: 2 parts of ligustici rhizoma et radix, 1 part of tangerine peel, 0.5-1 part of mint, 0.5-1 part of asariradix et rhizoma, 0.5 part of dried ginger, 2.5-3 parts of ethanol, and 1.5-2 parts of dimethyl ether. The traditional Chinese medicine aerosol is used for treating the upper respiratory diseases of poultry and has excellent curative effect and good atomization effect, and the spray rate is not less than 1.3g / s, so that intensive breeding and dosing are facilitated.

The invention provides an effective peristrophe antipyretic petroleum ether part, as well as a preparation method and an application thereof. The effective peristrophe antipyretic petroleum ether part is prepared from collecting fresh complete peristrophe herbs, drying the herbs in the shade, and crushing the herbs so as to obtain coarse peristrophe powder; by taking 70% of ethanol as a solvent, carrying out reflux extraction on the coarse peristrophe powder for 2-4 times in a heating manner; concentrating an extracting solution, and carrying out extraction on the extraction solution by using petroleum ether. The effective peristrophe antipyretic petroleum ether part disclosed by the invention has an obvious antipyretic effect, and especially has an effect of treating infectious hyperpyrexia caused by upper respiratory diseases, tracheal diseases, bronchial diseases and urinary system diseases.

The invention provides a medicine for treating respiratory diseases of bred animals. The medicine is prepared by carefully selecting medicinal and edible traditional Chinese medicines and carrying out scientific composition and fine research and development according to the theory of traditional Chinese medicine. The medicine provided by the invention is capable of discharging lung heat and clearing away heat and toxic matters, is effective on most of upper respiratory diseases of chickens like air sacculitis, Newcastle disease, bronchitis, laryngotracheitis and rhinitis, is also effective on upper respiratory infection of pigs, and can effectively reduce occurrence of influenza, inhibit cough and asthma caused by influenza and rapidly recover ingestion. The invention also provides a preparation method for the medicine for treating respiratory diseases of bred animals.

The invention belongs to the technical field of a traditional Chinese medicine complex prescription preparation for preventing or treating cold and influenza. The traditional Chinese medicine complex prescription provided by the invention comprises traditional Chinese medicine ingredients according to the weight mixture ratio: 1 to 40 parts of notopterygium root, 1 to 50 parts of folium isatidis, 1 to 50 parts of dandelion and 1 to 30 parts of dayflower. The traditional Chinese medicine complex prescription preparation adopts the four kinds of traditional Chinese medicine and the proper weight mixture ratio, the exopathogens dispelling, the cold-pungent diaphoresis, the heat clearing and the toxicity removal are fully integrated, the recipe is creative, the antipyretic effect is good, and the traditional Chinese medicine complex prescription preparation is clinically used for preventing or treating upper respiratory tract infection patients with symptoms of cold aversion with fever, headache without sweat, heavy and painful limbs, nasal obstruction and running nose, scratchy or sore throat, epigastric distension and depression, red tongue and sticky greasy coating and the like during the cold syndrome occurrence caused by upper respiratory tract infection diseases such as cold, influenza and the like.

The invention discloses a medicament for treating pulmonary tuberculosis characterized by that, the medicament comprises toasted garlic as the raw material, as well as raw material table salt and mint. The invention also discloses the method for preparing and use of the phthisis-treating medicament.

The invention discloses a biological protein antibacterial mouthwash, which mainly is prepared from the following ingredients in percentage by weight: 0.03 to 1 percent of yolk biological protein, 0.01 to 0.5 percent of isopropyl myristate, 0.08 to 0.1 percent of aloesin, 0.02 to 0.1 percent of surfactant, 0.02 to 0.3 percent of foaming agent, 0.2 to 0.5 percent of sweetener and the balance of deionized water; and the yolk biological protein is a complex antibody for resisting five types of pathogenic bacteria, i.e., streptococcus mutans, streptococcus sobrinus, influenza viruses, mycoplasma pneumonia and pneumobacillus. The biological protein antibacterial mouthwash disclosed by the invention has the characteristics of high safety and good antibacterial effect, and can effectively preventoral diseases (such as deciduous tooth caries of children) and upper respiratory diseases.

The invention discloses a health protection tea with yin nourishing and lung moistening functions. The health protection tea is prepared from the following raw materials in parts by weight: 6-18 partsof radix ophiopogonis, 2-6 parts of folium mori, 3-9 parts of radix glehniae, 1-3 parts of dendrobium officinale, 6-18 parts of fructus lycii, and 3-9 parts of radix pseudostellariae. According to the traditional Chinese medicine theory, the theory of treatment based on syndrome differentiation is adopted to screen original medicinal materials of traditional Chinese medicine, the provided traditional Chinese medicine health protection tea is scientific and reasonable in ratio, clinical experiment results show that the provided traditional Chinese medicine health protection tea has the great effects of nourishing yin, tonifying qi, moistening lungs and promoting fluid, and the like, and has a great auxiliary treatment effect on upper respiratory diseases of chronic pharyngitis, amygdalitis, pulmonary infection, bronchitis, cold and cough.

The invention discloses a lung-heat clearing mixture for treating various pneumonia, upper respiratory diseases, bronchitis, tonsillitis and other disease symptoms caused by bacterial infection and viral infection and a preparation method thereof. The lung-heat clearing mixture consists of eleven traditional Chinese medicines of scutellaria, isatidis root, honeysuckle, fructus forsythiae, herba taching, dandelion, rhizoma paridis, pericarpium citri reticulatae, balloonflower root, armeniaca amara and folia eriobotryae. The medicine materials are decocted for several times; volatile oil is collected; medicine liquid is mixed, is condensed, is added with edible essence and the like, is adjusted to certain amount and is evenly stirred, subpackaged and sterilized to obtain a finished product.The lung-heat clearing mixture emphasizes on coldness and coolness, aims at pathogenesis, clears away heat and toxic materials, mainly eliminates the pathogenic factor to effect a permanent cure, uses a product for dissipating phlegm and relieving cough, reaches lung vessels and disperses and descends lung qi to alleviate the symptoms; and the medicines have clear master-slave, mutual correspondence, precise compatibility and proper stipulation, so as to have the effects of clearing away the lung-heat, reliving heat, detoxicating, relieving sore throat, dissipating phlegm and relieving cough;and clinical experiments show that the total effective rate reaches over 90 percent.

The present invention is a medicine for treating pulmonary tuberculosis, which is characterized in that the raw materials for making active ingredients are composed of (1) garlic; (2) salt and / or mint. The invention also discloses a preparation method of a drug for treating pulmonary tuberculosis and a use method thereof. The medicine of the invention is simple in formula, low in cost and remarkable in curative effect. It has been proved by clinical trials that the average total effective rate can reach more than 98%, has miraculous effect on the treatment of drug-resistant pulmonary tuberculosis, and has no toxic and side effects on the human body. The method is very simple. The drug directly acts on the human lungs, and the effect is quick. It also has the effect of preventing secondary disease for those who have a history of tuberculosis. The medicament of the present invention can be used for the treatment of various types of pulmonary tuberculosis diseases, and can also be used for the treatment of other pulmonary diseases and upper respiratory tract diseases.

The invention relates to a traditional Chinese medicine aerosol for treating poultry upper respiratory diseases and a preparation method thereof, belonging to the field of animal husbandry and veterinary medicine. A traditional Chinese medicine aerosol for treating poultry upper respiratory diseases. The raw materials are calculated in parts by weight: 2 parts of Ligusticum edulis, 1 part of tangerine peel, 0.5-1 part of mint, 0.5-1 part of asarum, 0.5 part of dried ginger, and 2.5-1 part of ethanol 3 parts, 1.5 to 2 parts of dimethyl ether. The invention is used for treating poultry upper respiratory diseases, has excellent curative effect, good atomization effect, spray rate not lower than 1.3g / s, and is convenient for intensive breeding and administration.

The invention discloses a dyhumidification auto-water-adding agent atomization device. The device is provided with a device body, a wearproof pad used for preventing the equipment bottom from being excessively worn is arranged at the lower side of the device body, inner embedding openings are formed in the left side and the right side of the device body and are provided with a pulling belt used for moving the equipment, a wide cotton tape is arranged in the middles of the pulling belts, a liquid drainage opening, an embedded fixing opening, a cooling opening and a control panel are arranged atthe front side of the device body, a liquid drainage pipe used for draining waste liquid is connected to the liquid drainage opening, the other end of the liquid drainage pipe can be inserted into the embedded fixing opening to be fixed, the cooling opening is provided with a cooling net used for strengthening cooling, and the control panel is provided with a temperature display screen, a water amount display screen and a function button. By means of the dyhumidification auto-water-adding agent atomization device, dyhumidification and ultrasonic atomization are adopted, water vapor containedin agent mist can be effectively reduced, and thus a patient cannot have severe sensation of asphyxia; meanwhile, agent mist particles can be secondarily atomized according to use, so that the particles are diminished, and thus the equipment is suitable for being used for treating both upper respiratory diseases and lower respiratory diseases.

The invention relates to the Chinese herbal medical tea which comprises the raw materials of sarcandra glabra of 15-50wt percent, cyrtomium fortunei J of 10-40wt percent, common achyranthes herb of 10-40wt percent, isatis root of 8-50wt percent, rhizoma imperatae of 5-40wt percent, radix sophorae tonkinensis of 2-10wt percent, millet sprout of 30-50wt percent, honeysuckle of 6-15wt percent and mint of 2-6wt percent. The raw materials are decocted in water and the herbal tea is thereby obtained. The herbal tea of the invention has the functions of clearing heat, dehumidification, purging fire,relieving restlessness, cooling blood, detoxifying, strengthening spleen, dispelling summerheat and preventing and healing upper respiratory diseases and digestive tract diseases, for example, cold, heat stroke, mouth dryness, bitter taste, throat pain, inappetence, etc.

The invention discloses a folding type electric heating pad which mainly comprises a face-shaped far infrared heating body, two plate-shaped shell bodies capable of being combined and separated relatively, an environment-friendly insulating layer and a temperature controlled switch. The invention further discloses a method for manufacturing the folding type electric heating pad. The folding type electric heating pad is ingenious and reasonable in structural design, attractive and durable. A traditional electric stove wire heating method is replaced by the face-shaped far infrared heating body, the thermal efficiency reaches up to 99.6%, energy consumption is small, energy is saved, the environment is protected, noise does not exist, space humidity is guaranteed, the size is small, and the folding type electric heating pad can be carried conveniently. Due to the fact that a static far infrared radiation method is adopted to supply heat, air suspended solids and bacteria caused by other products do not exist, the probability of suffering from an upper respiratory disease is reduced, anion can be released to effectively purify working environment and life environment air, a user can feel comfortable and calm in a clean and quiet environment, the user can also feel placid and happy, and working efficiency and physical and psychological health of the user can be improved. According to the manufacturing method, working procedures are simplified, the folding type electric heating pad can be fast produced, and production efficiency is high.

The inventor is guided by a traditional Chinese medicine compatibility theory, modern pharmacological research results are taken as a basis, and on the basis of folk proved prescriptions and folk prescriptions, the functional beverage prepared from licorice roots, dried orange peel and honey which are homologous in medicine and food as raw materials is combined with years of medication practices of the inventor, and the functional beverage has good effects of relieving cough, eliminating phlegm and relieving swelling and pain. The traditional Chinese medicine composition has an excellent treatment effect on cold and cough of children when being matched with western medicines. The effect on swollen sore throat and hoarseness caused by staying up late of adults is also very obvious. Due to the influence of factors such as air pollution, the morbidity of the upper respiratory diseases in China tends to be increased year by year, and the functional beverage with the adjuvant therapy effect on the upper respiratory diseases has objective market prospects. Cooperative production of food production enterprises is welcomed.

The invention discloses a traditional Chinese medicinal ointment for treating cough and its preparation method and application method. The traditional Chinese medicinal ointment is prepared from the following components: 15g of Codonopsis pilosula, 15g of Yizhiren, 15g of Radix chinensis, 15g of Aster, 15g of Coltsfoot, and 12g of Hailong , 10g hippocampus, 9g red ginseng, 10g cordyceps sinensis, 20g natural copper, 12g saffron, 15g white lentils, 15g heterophylla, 20g berberine, 15g diffusa hedyotis, 15g gentian, 15g prunella vulgaris, 5g kansui, 5g musk , clove 10g, Ganoderma lucidum 20g, Ziheche 20g, turtle shell 15g, turtle shell 15g, keel 15g, oyster 15g, Chuanbei 15g, licorice 5g. The invention can treat certain diseases without oral administration, avoid the pain and side effects caused by oral administration or injection, has simple and convenient operation, remarkable therapeutic effect, can improve the body immunity of patients, and reduce the occurrence of upper respiratory tract diseases.

The invention provides a respiratory tract cleaning and sputum excretion device for the department of pediatrics. The respiratory tract cleaning and sputum excretion device for the department of pediatrics comprises a balance weight disc, an adjusting mechanism, a driving mechanism and an air pipe, wherein the adjusting mechanism is installed on the balance weight disc and comprises a supporting column, a gear cylinder, a threaded rod, a protection shell, a lead screw, an adjusting handle and a base, the driving mechanism is installed on the base, the driving mechanism comprises a motor, a fixing plate, a driving rod, a sliding block, a positioning rotating rod, a transmission rod, a piston connecting rod, a positioning plate and a limiting sleeve, and the air pipe is fixedly installed on the supporting plate. The respiratory tract cleaning and sputum excretion device for the department of pediatrics has the advantages that the oral cavity and the throat of a child cannot be hurt, and the child is prevented from suffering from upper respiratory tract diseases due to secondary infection.