A nevus generally refers to a melanocytic nevus, which is a benign skin tumor of melanocytic origin. Nevus with a diameter of 1~2mm or less can be treated with non-surgical treatment, while nevus with a diameter of more than 3mm needs to be treated with surgical treatment. 1. Non-surgical treatment: moles with a diameter of 1~2mm or less can be treated with non-surgical treatment, and non-surgical treatment methods include laser and chemical cauterization. The advantage of laser is that it is more precise and easy to remove at one time, so it is not easy to recur. 2. Surgical treatment: the best way to treat nevus with diameter more than 3mm is surgical treatment, laser and cauterization are not thorough enough, and it is easy to cause recurrence of residual nevus cells or even cause malignant change of nevus. The excision can be sent for pathological examination to determine whether there is any possibility of cancer to guide the next step of treatment. If you want to remove a mole from your ear, please choose a regular hospital for treatment and do not do it by yourself.