There are two ways to repair the scar on the face: first, non-surgical, non-surgical can use laser, the most commonly used is carbon dioxide fractional laser, or Q-modulated laser, laser irradiation to the scar can inhibit the proliferation of fibroblasts in the scar, so that the scar gradually atrophies. You can also use local anesthetic drugs mixed with hormone to inject into the base of the scar, usually 1 time/month, the scar will gradually shrink after 2-3 times; second, surgery, if the effect of conservative treatment is not particularly obvious, you can consider surgical excision, after surgical excision of the scar, the skin is usually sutured layer by layer, about a week after suturing the skin, the facial defect is healed, and it is better to use some drugs topically after healing. Scar treatment is a comprehensive approach. If laser or topical medication alone does not work well, you can use a combination, such as laser plus surgery, or topical medication plus laser, etc.