Small red nevus, also known as hemangioma, is a benign swelling caused by abnormal proliferation of vascular endothelial cells, and can be treated with laser, surgery, freezing, ionization or medication. 1. Cryosurgery is the option of applying liquid nitrogen to the affected area to make the nevus fall off, and the same is true for electroionization.4. In terms of drug selection, oral cyclophosphamide immunosuppressant can be taken. Topical imiquimod ointment can also be used for the purpose of treating small red nevi. At the same time, small red nevus should not be scratched or picked and squeezed by hands to avoid the possibility of secondary infection or triggering lesions.