Chen's bone injury therapy is a traditional medicine project in the fourth batch of representative projects of Nantong's municipal intangible cultural heritage. Chen's bone injury therapy is a method of using external medicine preparations to treat bone injuries. Chen's bone injury external medicine preparations are divided into Xugusan and Huoxuesan. External application penetrates through the skin, stimulates nerves, dilates blood vessels, promotes local blood circulation, and achieves the effects of reducing swelling, promoting blood circulation and removing blood stasis, and improving inflammation of the synovial membrane of bones and joints. Chen's bone injury external medicine originated from Ma Peizhi, the imperial physician of Empress Dowager Cixi during the Qing Dynasty. After strict material selection, it is configured according to the secret recipe. During the production, different medicinal materials are naturally dried in the shade or roasted and dried, and then crushed, sieved, matched, and packaged. During treatment, Xugusan is taken out according to the amount, and 48 or more corn liquor is added to make a paste, which is spread on gauze, and evenly sprinkled with Huoxuesan to cover it, apply it to the fracture site, and fix it with splints and plaster. After bandaging, it quickly reduces swelling and relieves pain, effectively improves pain, swelling and discomfort within 24 hours, and promotes the formation of original bone callus within three weeks. (No pictures available, please provide them.) (No pictures available, please provide them.)