Scars refer to keloid scars, which can be removed through medication, physical therapy and surgery. 1. Medication: patients can use topical scar removal cream under the guidance of doctors, or drugs such as imiquimod cream and retinoic acid ointment. At the same time, you need to cooperate with the doctor in the local injection of glucocorticosteroids such as trimethoprim, or fluorouracil and other chemotherapeutic drugs, to a certain extent, you can make the scar softer and thinner. 2. Physical therapy: Clinical physical measures for treating keloid scars include cryotherapy, radiotherapy, laser therapy, compression therapy, silicone membrane therapy, ion beam therapy and so on. 3. Surgery: For patients who have no effect of medication and physical therapy, it is necessary to consider surgical treatment, such as keloidectomy direct suture surgery, keloidectomy Z-plasty and so on. The above treatments cannot completely remove the scar, but can significantly improve the appearance. Patients are advised to go to a regular medical institution for treatment.