Nevus of Ota is a more common clinical pigmented disease, manifested as blue-gray or gray-brown patches in the distribution area of the eyes and maxillary trigeminal nerve. This disease is usually treated with laser therapy, such as dye laser, pulsed intense light, Q-tuned laser, etc. 1. Dye laser treatment: Dye is used as a medium to release laser light to irradiate the lesion area, which will help the pigment particles to break up, so as to remove nevus of Ota. 2. Pulsed intense light treatment: refers to the release of high-intensity broad-spectrum light on the lesion in a very short period of time, which can destroy melanocytes and help to lighten and eliminate nevus of Ota. 3. Q-tuned laser treatment: based on the principle of photoluminescence bursting, the laser light it produces can reach the deep layers of the skin in an instant, destroying and discharging pigment particles and helping to improve skin symptoms. There is no one way to improve nevus of Ota, so patients are advised to go to regular hospitals for consultation and standardized treatment under the guidance of doctors.