Knee fall skin should do the following treatment: First, you can apply iodine povidone, use iodine to disinfect and then use alcohol to remove iodine, you can also use topical erythromycin ointment, mupirocin ointment and so on for anti-inflammatory. Secondly, the injured place as far as possible do not get wet, make it as natural as possible after the scab until the wound heals. Third, can be appropriate to more intake of nutritious substances to promote the healing of the wound, such as rich in vitamins and fiber foods, common apples, kiwi, duck pear, spinach, small round vegetables, lettuce, etc., but also need to be appropriate intake of high quality proteins rich in low-fat and low cholesterol, such as fresh fish and fresh shrimp and so on. Fourth, if the time and economy allows, you can apply local herbal medicine or physical therapy to promote the healing of the wound. Fifth, patients also need to minimize activities, so that the scabs do not fall off, can also promote local healing.