A simple skin abrasion should be treated with iodophor disinfection, followed by a period of time when the scabs will slowly fall off on their own and recovery will be gradual. However, if there is obvious pain and swelling and limited range of motion of the joint, apply ice packs immediately after the injury, with a layer of towel in between to protect the skin. In addition, do not go down to the ground and go to the hospital for an X-ray or MRI to rule out any fractures, cruciate ligament or meniscus damage. If these areas are serious, surgery is needed to solve the problem, and if not serious, external fixation is needed for a period of time. During this process, physical therapy and pain relief creams such as Yunnan Baiyao aerosol and blood circulation pain relief creams are used to treat the symptoms.