There is no such thing as the best treatment for flat warts. Physical therapy such as freezing and laser can be used, as well as topical medication such as retinoic acid ointment. The actual wart is a flat, elevated papule caused by human papilloma virus infection of the skin and mucous membranes, which is common in children and adolescents, and is commonly found on the face, back of the hands and forearms. It is recommended to go to the dermatology department, and the treatment mainly includes physical therapy and topical medication. The physical treatment of flat warts includes freezing, laser, electrocautery, etc., which is more suitable for those who have fewer lesions. The actual physical treatment of flat warts is suitable for those who have large skin lesions and are not suitable for physical treatment, such as 0.05%~0.1% retinoic acid ointment, 5-fluorouracil ointment, 3% peptidylbutylamine cream, imiquimod ointment ointment, and so on. All of the above drugs should be used under the guidance of a doctor.