Patchy baldness can be completely cured in most cases. Usually, baldness is caused by heredity, mental factors, and autoimmunity. It often manifests as a round or oval spot of hair loss that appears suddenly, with smooth, non-scarred skin in the affected area. The disease is somewhat self-limiting but can recur. The usual treatment is based on medication, such as topical tincture of minoxidil, glucocorticoid ointment such as halometasone and mometasone furoate ointment, or local intradermal injection of glucocorticoid. If the disease progresses rapidly and the area is large, it can be treated with short-term oral glucocorticoid medication, such as prednisone. In addition, you can also try to use ultraviolet radiation, photodynamic therapy, excimer laser therapy and other methods. Patients need to go to regular hospitals and take medication under the guidance of professional doctors to avoid private medication.