Acne may be related to endocrine, follicle sebaceous gland duct keratinization abnormality, diet, heredity and other factors, the treatment of acne commonly used retinoids, benzoyl peroxide, antibiotics, azelaic acid and other ointments. 1. Vitamin A acid: such as adapalene gel, tazarotene gel. This type of cream can be used to promote the dissolution and discharge of acne when excessive sebum secretion is caused by abnormal keratinization of the sebaceous gland ducts of the hair follicles. At the beginning of the use may appear a slight stinging sensation, after adaptation to the relevant symptoms can slowly disappear, allergy is prohibited. 2. Benzoyl peroxide: such as benzoyl peroxide gel. It can be used when acne is more serious and when it is infected by bacteria. It can kill Propionibacterium acnes, dissolve acne and astringent. The drug is irritating and is contraindicated for allergy sufferers. 3. Antibiotics: e.g. Clindamycin phosphate gel, Ofloxacin gel. Antibiotic creams can be added to acne when there is evidence of infection. Antibiotic creams should be used in a targeted manner and should not be used for long periods of time. 4. Azelaic acid: such as azelaic acid cream. It reduces bacteria on the surface of the skin, in hair follicles and sebaceous glands, and slowly dissolves acne. The medication has an irritating reaction, and allergic skin needs to be tested before using the medication. Treatment of acne also need to control diet, good daily skin care, specific medication needs to be guided by a doctor, and to be targeted, it is recommended that acne sufferers seek medical attention in a timely manner.