Wound infection is usually caused by improper treatment, failure to follow the principle of asepsis during surgery and imperfect postoperative care, etc. The treatment method is mainly to control infection and promote wound healing through wound irrigation, debridement and medication: 1. 2, debridement: Necrotic tissue and pus should be thoroughly removed, and the operation should pay attention to the preservation of not yet necrotic muscle tissue as well as important nerves and blood vessels, and fully open the wound for drainage, decompression and postoperative observation, after which if the preserved part of the muscle tissue is also necrotic, it should be immediately debridged again, and the removal of necrotic tissue is beneficial to accelerate wound healing and repair. If the wound surface is accompanied by more exudate after debridement, drainage strips or drainage tubes can be considered to reduce the local pressure of the wound and promote healing. After drainage, dry gauze and cotton pads should be used for dressing; 3, drug therapy: mainly for the application of antibiotics to control infection, commonly used drugs include penicillin, such as ampicillin, amoxicillin, etc., for penicillin allergic patients can choose cephalosporins, such as cefothiophene, cefadroxil, etc.; 4, other: for patients with septic wounds and extensive muscle necrosis can also choose hyperbaric oxygen therapy, which can inhibit The growth and reproduction of anaerobic bacteria and the release of toxins, so as to control the infection and promote wound healing.