Xu's external application therapy for arthritis is a traditional medicine project of the fifth batch of representative projects of Lianyungang's municipal intangible cultural heritage. Xu's external application therapy for arthritis began in the late Qing Dynasty. It is based on the treatment principles of traditional Chinese medicine and adopts specific methods of external treatment for internal diseases. It is mainly used to treat bone hyperplasia, lumbar disc herniation, rheumatism, and cervical shoulder syndrome caused by wind, cold, and dampness. It has a unique effect on eliminating sciatica, soreness of waist and legs, swelling, pain, numbness of hands and feet, and other symptoms caused by them. This therapy adopts the secret recipe handed down from the ancestors of the Xu family, and is made by crushing more than a dozen Chinese herbal medicines such as Chuanwu, Caowu, Penicillium, Safflower, Clematis, Panax notoginseng, and Borneol. When using, mix it with vinegar to make a paste, put it into a gauze bag, and stick it to the affected area with adhesive tape. It is simple and easy. In recent years, tens of thousands of patients have been cured. (No pictures yet, welcome to provide.) (No pictures yet, welcome to provide.)