Clinically, depending on the severity of the abrasion at the arm, different treatment methods are often available: 1. If the patient has a relatively light degree of abrasion at the arm, with only superficial soft tissue damage, and no active bleeding and other serious complications, local disinfection with vital iodine or alcohol cotton balls and sterile gauze dressing can be used to restore the wound surface to normal relatively quickly after 3-5 days, with better treatment results. 2. arm abrasion is more extensive, the damage is more serious, accompanied by active bleeding as well as more sludge and bacterial residue, at this time, you need to use hydrogen peroxide, vital iodine, saline rinse the wound as soon as possible to avoid the accumulation of more local bacteria, and the patient is injured within 24 hours, you need to inject tetanus antitoxin or tetanus immunoglobulin as soon as possible to prevent tetanus infection, so that the treatment of the arm can be faster recovery.