Keloid scars can be treated and are usually improved clinically with local injections, cryotherapy, and surgery. Keloid is secondary to skin trauma or spontaneous formation, manifested as overgrowth of pathological scar tissue, mainly manifested as a swelling or cord above the surface of the skin, usually using local injection, cryotherapy and surgery. 1. Local injection: glucocorticoid drugs are usually used for local injection, such as Triamcinolone acetonide, Betamethasone, etc., which can prevent the scar from extending outward and gradually shrinking, and adverse reactions such as skin atrophy, hypopigmentation and capillary dilatation may occur after injection. 2. Cryotherapy: cryotherapy is to use low temperature to destroy the local cells and blood microcirculation, so that the keloid lesion tissue necrosis, shedding, so as to achieve the purpose of removing keloid scars, applicable to patients with a shorter course of the disease and a smaller area. 3. Surgery: Surgery refers to removing the keloid and then sewing the normal skin together again, which is suitable for medium, large or super-large keloid. Combined superficial radiotherapy is needed after surgery to reduce the recurrence rate. All of the above medications should be used under doctor’s supervision, avoid self-medication. Daily should try to avoid trauma or infection, patients are recommended to visit the hospital in time, under the guidance of the doctor standardized treatment.