Acne refers to acne, and creams to eliminate acne include retinoids (adapalene gel, etc.), antibiotics (erythromycin ointment, etc.), azelaic acid (azelaic acid cream, etc.), and peroxides (benzoyl peroxide gel, etc.). 1. Retinoic acid: If the patient belongs to mild to moderate acne, he can use retinoic acid drugs to treat, this kind of can dissolve pimples, regulate the differentiation of epidermal keratinocytes, such as adapalene gel, tazarotene ointment and so on. This kind of drugs may appear after the use of erythema, peeling and burning sensation. 2. Antibiotics: can be used to treat acne that already has a purulent infection, commonly used ointments include fusidic acid cream, erythromycin ointment, clindamycin ointment and so on. As these drugs may induce drug resistance in Propionibacterium acnes, they should not be used alone. 3. Azelaic acid: It can reduce the flora of hair follicles and skin surface, mainly azelaic acid cream. However, localized stinging and mild erythema may occur. 4. Peroxide: after the use of such drugs, can release the new ecological oxygen and benzoic acid, for acne has a certain astringent and dissolving effect, commonly used drugs for benzoyl peroxide gel and so on. If the patient’s skin is broken or allergic to this product, it can not be used. It is recommended that patients with acne consult a doctor in a timely manner and use the ointment strictly in accordance with the doctor’s instructions, and patients should not use the medication without authorization in order to avoid accidents.