At present, there is no such thing as an ointment that does not leave scars on moles. If patients want to apply creams to remove moles, they will often have scars at the same time. Because the application of ointment for mole removal often has obvious corrosive effect, such as hydroquinone cream can often bring local redness, pain and blisters. Therefore, creams to remove moles are not the first line of treatment for moles. Currently, patients are recommended to apply laser, liquid nitrogen freezing or surgical excision to treat pigmented nevi. Because with these treatments, the doctor can effectively control the patient’s wound. Therefore, patients often do not have obvious scars left on the local skin, and these treatments are now more mature and do not cause great pain to patients.