Knee abrasions generally need to be wrapped in gauze, which can play a role in protecting the wound and avoiding infection; the state of the wound is very shallow, and can also not be wrapped. If the knee abrasion wound is shallow, then you can use iodophor and other antiseptic drugs to disinfect the treatment, and then use sterile gauze or sterile dressings to wrap the wound, and change the medicine regularly. If the knee abrasion wound is deeper, or the wound oozes more fluid, then the wound needs to be disinfected and debrided. In this case, it is important to use gauze dressings and change the dressing regularly, which will reduce the risk of wound infection. And take antibiotics such as amoxicillin, cefaclor to prevent infection, and tetanus antitoxin injection to prevent tetanus. In addition, during the recovery of the knee wound, avoid eating some more stimulating food, keep a light diet, eat more fresh vegetables and fruits.