Hello, nevus of OTA can be cured by reasonable treatment. At present, laser therapy can dilute or remove the pigment, directly apply selective light and heat to the diseased skin tissue, crush and decompose some abnormal pigments, and then be swallowed by phagocytes and excreted through lymphatic circulation, thus removing nevus of OTA. Laser treatment is relatively safe, generally does not damage the surrounding tissues, but it usually takes 3-5 treatments to see the ideal effect. The interval of each laser treatment is about 2 to 3 months, and there are few scars after treatment, which meets the needs of patients aesthetically.