Imiquimod ointment to remove flat warts has some efficacy, depending on the person. Flat warts are benign skin lesions caused by human papillomavirus infection. You can use imiquimod ointment as a topical treatment. The mechanism of action of imiquimod ointment in the treatment of flat warts is not clear. It is mainly used for adult genital and perianal warts, and can also be used for the treatment of flat warts and other viral warts. Adverse reactions are mainly local irritation, such as pain, itching, etc., but also a few patients may experience systemic symptoms, such as fatigue, fever, muscle pain and so on. People who are allergic to the drug are prohibited from using it. The appearance of flat warts need to go to the hospital in time to check, the drug needs to be used under the guidance of a professional doctor, to avoid their own abuse of drugs.