There are two main methods to repair scars: 1. non-surgical: 1. non-surgical can be topical anti-scar medication, thus inhibiting the proliferation of scar cells and slowing down the growth of scars. 2. hormones plus local anesthetic medication can be injected into the root of the scars to inhibit the proliferation of scar cells by way of injection, thus gradually making the scars smaller. 3. radiation can also be administered to slow down the proliferation of scar cells through the action of radiation on the scar cells. The proliferation of scars can be slowed down by radiation. Surgery: If the above conservative treatment methods are not very effective, you can consider surgery, which can remove the scars directly, but of course, you should continue the scar prevention treatment after the removal, through the above-mentioned topical drugs or shallow radiotherapy. Scarring is a difficult tissue to repair, and one method is difficult to make it achieve good results. Generally, comprehensive treatment is used, and two or three methods are used in combination to achieve relatively good results.