Scars, or keloids, usually do not go away on their own and cannot be completely cured. Symptoms and limb function can be improved through medication, other treatments, surgery and other treatments. 1. Medications: Glucocorticoid drugs, such as betamethasone and triamcinolone acetonide, can improve the hardness of the scar, reduce the size and thickness of the scar, reduce inflammation and relieve pain and itching; immunomodulators, such as tacrolimus, interferon and imiquimod, can inhibit the proliferation of keloid scars; and botulinum toxin A can improve the rate of proliferation of keloid fibroblasts. 2. Other treatments: Other treatments include radiation therapy, laser therapy, intra-lesional cryotherapy, etc., which can improve the appearance of keloid, promote the degradation of keloid tissue, and reduce the size of keloid, which can alleviate the patient’s symptoms. 3. Surgery: If the keloid is large in size, or the effect of the above treatments is not obvious, it can be treated by surgical excision, which aims to reduce the size of the keloid, and relieve the scar contracture and local tension. However, surgery generally needs to be combined with regular postoperative radiation therapy to avoid the formation of keloid here after the incision. Skin scar tissue continues to proliferate, difficult to subside, and patients who have the will to improve need to go to the plastic surgery department of a regular hospital, combined with the advice of specialists for treatment, which can improve the patient’s quality of life.