The invention discloses an external patch for treating injury of tendons and muscles. The external patch is prepared from 135-145 parts of pseudo-
ginseng root, 120-130 parts of Chinese angelica, 80-90 parts of safflower, 120-130 parts of
frankincense, 120-130 parts of
myrrh, 80-90 parts of yellowmouth dutchmanspipe root, 120-130 parts of large-leaved gentian and 120-130 parts of common clubmoss
herb. A preparation method of the external patch comprises the following steps of: adding the Chinese angelica,
frankincense and
myrrh into water for soaking, extracting volatile oil for later use, filtering decoction dregs and a residual liquid out, extracting a filtrate for later use, adding water into the decoction dregs and the safflower for decocting, filtering a decoction, combining filtrates, and concentrating under reduced pressure to obtain thick paste; adding
ethanol into the pseudo-
ginseng root, yellowmouth dutchmanspipe root, large-leaved gentian and common clubmoss
herb for performing
reflux extraction, combining filtrates, recovering
ethanol, and concentrating into thick paste; combining the two types of paste, adding polyacrylate
sodium, mixing uniformly to obtain rubber paste, and spreading onto a back lining film; and diluting the volatile oil with
ethanol, spraying onto semi-finished paste, covering a lining, and
slicing to obtain a finished product. The external patch has the effects of promoting
blood circulation to
remove blood stasis, soothing tendons, relieving pain, warming meridian, promote
blood circulation, expelling wind, removing dampness, and relaxing and activating the tendons, has rich bulk pharmaceutical source and an advanced process, and contributes to
mass production.