Isotretinoin tablets (Generic Accutane) is used to treat severe acne. It's usually tried when antibiotics aren't effective.
Azelaic acid 5% cream is used on the skin to treat mild to moderate acne.
Imiquimod 5% cream (Generic Aldara) is used to treat actinic keratosis on the face and scalp. Imiquimod cream is used to treat external genital or anal warts.