The common methods of removing old scars (keloid scars) include medication removal, laser removal, surgical treatment, injection treatment, and so on. 1. Topical drug removal: under the guidance of the doctor, you can apply topical cumeneoside, silicone preparations and onion extract-containing preparations to the scar, which can reduce scarring and alleviate keloid hyperplasia. 2. Laser removal: If the patient’s old scar is depressed scar, laser treatment can be carried out under the guidance of the doctor, usually using fractional laser treatment, through the laser to stimulate local collagen proliferation, to achieve the effect of removing the scar. 3. Surgery: Hyperplastic scar can also be treated with surgery, which can be done by transplanting other parts of eligible skin to the scar area, or surgically removing the scar and then re-decreasing and sewing it up, so as to make the scar lighter. 4. Drug injection therapy: patients can also use long-lasting glucocorticoid injections in the skin lesions, injection therapy is mainly for proliferative scar treatment, you can use tretinoin, compound betamethasone and other injections in the scar, which can make the local tissues atrophy, to achieve the effect of removing the scar. Patients should actively cooperate with the doctor’s treatment, do not self-medication for treatment, so as not to delay the condition or adverse reactions.