If you have acne on your face, you should always wash your face with warm water, soap, or even sulfur soap to keep your face clean. Acne is a common chronic inflammatory skin disease in young people, which occurs in areas rich in sebaceous glands. The disease usually occurs on the face, chest and back, with characteristic acne, papules, pustules, nodules, cysts and other lesions. The pathogenesis of acne is complex and is the result of several factors, among which endocrine factors, bacteria, sebum and genetic factors play an important role. Endocrine factors lead to the proliferation and exuberant secretion of sebaceous glands. A large amount of sebum secreted is deposited in the sebaceous glands of hair follicles to form fat plugs, and stimulate the hyperkeratosis of hair follicle epithelial cells, and expand the hair follicle mouth to form blackhead acne. The patient's sebaceous glands secrete a large amount of sebum, which reaches the skin surface along the path of the hair follicle sebaceous glands to moisturize the skin. The clinical manifestation is that there is much oil on the face, a lot of sebum and dirt on the face, and the formed grease dirt blocks the hair follicle mouth, which accelerates the formation of local acne. Therefore, if the face is damaged by acne, you should often wash your face with warm water, soap, or even sulfur soap. Do not use too much skin care products and cosmetics to keep your face clean. Patients should avoid spicy and irritating food and stay up late. Local areas can be coated with benzoyl peroxide gel or adapalene cream to remove acne. If inflammation is obvious, patients can treat acne with oral minocycline.