Imiquimod is an immune response modifier. Imiquimod topical is used to treat actinic keratosis (a condition caused by too much sun exposure) on the face and scalp. Imiquimod topical (for the skin) is also used to treat a minor form of skin cancer called superficial basal cell carcinoma, when surgery would not be an appropriate treatment. Imiquimod topical also treats genital warts that appear on the outside of the body, but this medicine is not a cure for genital warts. Imiquimod may be used in adults and children who are at least 12 years. Imiquimod topical may also be used for purposes not listed in this medication guide.
Aldara is a topical drug that is used to treat external warts around the rectal and genital areas that are called condyloma acuminatum. Aldara is not used for warts that are found inside the rectal and genital areas. Aldara works in the immune system to assist the body to fight several viruses that cause warts. It does not attack the virus directly.