If the patient’s wound infection is light, small area, not deep, at this time you can use iodophor or alcohol ball, disinfect the skin around the wound, and then use 3% hydrogen peroxide or saline to clean the wound, pay attention not to make the alcohol invade the wound skin within, so as not to cause pain, according to the need, can be covered with petroleum jelly gauze, or other to promote wound healing gauze or gauze strip, and then covered with 3-4 layers of dry gauze, and finally with adhesive tape or bandage to fix it. The wound can be changed and flushed twice a day. If the wound is heavily infected, with more pus, blackened tissue, foul odor or greenish dressing, go to the hospital promptly and give debridement, open drainage and antibiotic application.