The preferred conservative methods for facial scar removal: 1. you can use topical drugs, and topical drugs can inhibit scar cell proliferation. 2. you can use laser, the more commonly used carbon dioxide fractional laser, through the thermal effect of the laser can slow down the proliferation of cells within the scar, making the scar gradually lighter and flatter. 3. you can inject the inside of the scar, and the drug can choose local anesthetic plus hormone, which can inhibit scar cell proliferation. 4. You can also do superficial therapy, using corresponding X-rays or certain wavelengths of radiation on the scars, which can also serve the purpose of inhibiting scar proliferation, making the scars gradually grow slower and finally mature and age. If the above conservative methods are not so good, surgery is finally considered, but surgery is more traumatic to the face, and anti-scar treatment should be done as early as possible after surgery to avoid scars growing even bigger than before.