Avoid smoking, alcohol, spicy and stimulating foods, and direct sunlight】 It is best to reduce the intake of smoking, alcohol, spicy and stimulating foods for 3 months to 6 months after surgery, because these foods will stimulate the vascular reaction and make the surgical site congested and accelerate the re-generation of scars. In addition, direct sunlight should be avoided, as long-term exposure to sunlight will deepen the color of the scar. Keep the wound dry] Keep the surgical incision dry after scar surgery until 2 days after stitch removal. [Use of tension reducer or cosmetic tape] When the scar excision area is large, the suture tissue will generate more tension, and tension is the most important cause of scar growth, so the surgeon will prepare a tension reducer or cosmetic tape for the surgeon to use after the surgery according to the surgery. The purpose is to reduce the tension between the tissues. These devices will be used by the surgeon for the patient at the surgery, but it should be noted that the patient should continue to insist on using them after going home or after the sutures are removed. Usually the scar stabilization time is 3 to 6 months, so the extender can be applied during this period. 【Use of anti-scar medications】 Many seekers consult the effectiveness of various anti-scar medications. In fact, no matter which medication is used, it can only slow down the generation of scars, but not completely eliminate them, so it is important to have a correct expectation of the effectiveness of scar medications. In addition, these medications generally need to be used within 3 months, and applying scar medications beyond 6 months will not be effective. 【Close follow-up】 Since some individuals are keloid, it is important to pay attention to close follow-up after scar surgery to prevent the scar from growing larger again. When you find that the scar tends to grow, or becomes red and itchy, you need to go to the hospital in time to get the corresponding treatment.