Generally, the keloid scars produced by minor falls will gradually fade away after natural shedding, and usually no pigmentation will remain. For more serious keloid scars, the following repair methods are commonly used: 1) radiation therapy: radiation can be used to treat facial keloid scars, mainly for superficial hyperplastic keloid scars; 2) laser therapy: laser can be used to eliminate superficial hyperplastic and depressed keloid scars; 3) injection therapy: for hyperplastic keloid scars or keloid scars, local intra-dermal injection of glucocorticoids or 5-fluorouracil can be chosen 4. Topical drugs: for early scarring, you can choose to use topical drugs that inhibit scar formation, including mucopolysaccharide polysulfate cream, cumene cream, silicone gel, etc. You can also use moisturizing and softening creams containing silicone, anti-scarring and anti-inflammatory creams with steroids, and melanin creams that lighten pigmentation, etc.; 5. For some atrophic scars, tissue filler can be chosen, and attention should be paid to reduce scratching and bad stimulation before and after treatment.