Acne is a chronic inflammatory disease of the sebaceous glands of the hair follicles. It occurs on the head, face and upper chest and back. Skin care, diet and medication can be used: 1. Skin care: Pay attention to skin cleanliness, reduce the use of oily cosmetics, and do not squeeze or scratch acne with your hands; 2. The dermatology department of the hospital is recommended to visit, after professional, targeted examination, under the guidance of the doctor with drug treatment. Topical medications can be selected from retinoic acid, peroxyphenylmethyl, antibiotics, azelaic acid and other drugs, the more serious symptoms can be systemic drug therapy, oral minocycline, isotretinoin and other drugs as prescribed by the doctor.