Imiquimod sachet contains the active ingredient imiquimod and is primarily used topically to treat certain skin conditions, including genital warts (condyloma acuminata), actinic keratoses (precancerous skin growths), and superficial basal cell carcinoma (a type of skin cancer). Imiquimod works by stimulating the immune system to produce cytokines, which help the body fight against abnormal cells and viruses. Imiquimod is typically applied directly to the affected area as a cream or gel.