The active period of scar hyperplasia is usually six months to one year. During this period, the method of continuous compression with elastic bandage can inhibit scar hyperplasia. In addition, regular plastic surgery pharmacies or hospitals have dressings such as "Scar Enemy". The dressing is made of hydrocolloid material, and it can also inhibit scar hyperplasia if it is stuck on the scar for 24 hours. There is also a hormone injected into the scar, which is scar contraction. There are many methods to treat scar hyperplasia in the plastic surgery department of the Third Clinical Hospital of Peking University, so it is recommended to consult the plastic surgery clinic first.