Blackheads generally refer to blackhead pimples, which are a skin lesion manifestation of acne. If blackheads are not infected, they are usually treated by applying retinoic acid cream, salicylic acid ointment, etc. If they are accompanied by infection, antibiotic ointment such as roxithromycin ointment can be added to treat them. 1. No infection. Blackheads are generally caused by sebaceous glands whose ducts are blocked by sebum, leading to retention of sebum secretion. Often lipolytic ointments are applied for treatment, such as retinoic acid cream, salicylic acid ointment, adapalene gel, etc., which can help to dissolve and discharge the blackheads. 2. Accompanied by infection. If accompanied by local infections, you can add roxithromycin ointment, clindamycin ointment, etc., for sterilization and anti-inflammatory. In addition to the application of drugs under the guidance of the doctor, blackheads need to pay attention to facial cleanliness in daily life and minimize the intake of spicy and stimulating food.