Nevus of Ota is usually treated mainly with laser, and the specific number of treatments needs to be determined according to the depth and area of the nevus of Ota and other factors. Laser treatment of nevus of Ota is one of the more commonly used methods nowadays, which is to irradiate the lesion area with laser energy and destroy the pigmented tissues, so as to achieve the therapeutic effect. The exact number of treatments needed is not certain, it depends on the specific condition of the lesion, for example, some people have lighter colored nevus of Ota with smaller area, which is easier to treat and may be cleared up in about 3-5 times; while some people have dark colored nevus of Ota with large area, which will require more treatments to achieve the desired goal. With nevus of Ota on the skin, it is recommended to go to a regular hospital for an interview, consult the doctor carefully, and adopt a suitable treatment plan under the doctor’s guidance. You should cooperate with the doctor during the treatment and take good care of the nevus after the treatment to prevent infection.