How to repair surgical scar?

Hello, there are many methods to treat scars at present, but most of them have no effect. Generally speaking, it is more difficult. If the scar is shallow or small, you can go to a conditional hospital and try cosmetic laser treatment. Tretinoin cream or Hirudoid can also be used externally. If the scar is large and deep, you can go to the hospital for local blocking treatment with Diprospan.