The most common ones are hematoma, folliculitis or soft tissue infection, common warts, dermatofibroma, etc. The treatment methods are as follows: 1, hematoma: cold compresses within 24 hours are good for controlling the spread of subcutaneous bleeding, and hot compresses after 24 hours are good for better absorption of subcutaneous bleeding. 2, folliculitis or soft tissue injury: it is recommended to first carry out local cleaning, remove the hair from the lesion area, and locally use Mupirocin ointment or fusidic acid cream for application, along with oral cephalosporins, penicillin, tinidazole, detoxification drugs for treatment.