Scars are usually the product of healing and repair due to skin injury, and can be repaired by medication, laser treatment, filler treatment and surgical intervention. 1. Medication: If the local scar is in the state of hyperplasia, it can be inhibited by local injection of glucocorticoid drugs such as tretinoin, which can inhibit the local excess collagen fibers and achieve the purpose of inhibiting scarring. You can also use topical silicon gel, cumene glycoside cream and other drugs to lighten the scars. 2. Laser treatment: patients can use fractional laser to act on the scar site, transplant the proliferated fibrous tissue, so as to lighten the symptoms of local scars. 3. Filler treatment: For larger atrophic scars, filler treatments such as hyaluronic acid or autologous fat may also be needed. 4. Surgical intervention: mainly for hyperplastic scars, excess scar tissue can be surgically excised to achieve the purpose of repair, which usually needs to be combined with other methods to achieve the expected results. For the symptoms of localized scars, they should be combined with their own situation, and cooperate with the doctor to give the corresponding treatment. The above medications should be used in accordance with medical advice.