Acne is a chronic inflammatory skin disease of the sebaceous units of the hair follicles, with a variety of damages such as blackheads, papules, pustules, nodules, abscesses, cysts and scars. The clinical manifestations of acne are characterized by polymorphic lesions such as pimples, papules, pustules and nodules on the face, also known as youth acne. Acne has been documented in Chinese medicine for a long time, for example, in Su Wen – The Theory of Anger. This disease is called “pulmonary wind acne” in The Golden Guide to Medicine and Surgery, which states that “this disease is caused by blood heat in the lung meridian and occurs on the face and nose, with pimples shaped like millet crumbs, red, swollen and painful, and breaks out in white powder juice. Chinese medicine also refers to this disease as “powder blemish”, “facial blister” or “wine spur”. 1, how to prevent acne 1, pay attention to facial cleanliness: commonly wash your face with warm water, because cold water is not easy to remove oil, hot water to promote sebum secretion, do not use irritating soap, sulfur soap has certain benefits for acne, do not use snow cream and other greasy cosmetics. 2, a reasonable diet: eat more vegetables and fruits, eat less fat, sugar and spicy and other stimulating foods, and keep the bowels open. 3, do not use your hands to squeeze the acne, so as not to cause pus inflammation, pus ulceration and absorption of the formation of scars and pigmentation, affecting the beauty. Antimicrobials are effective for heavy infections. 4, work and rest, to maintain a happy spirit, the treatment of acne is very beneficial. Do not be burdened with acne psychologically, so as not to cause neuroendocrine disorders and make acne worse. If you feel that the acne on your face is not a problem, you do not have to use medication, you can wait for it to fade naturally, as it usually does not leave any traces after it fades. Western medicine treatment should change the diet, eat less fat and sugar, avoid alcohol and other stimulating foods, and eat more vegetables and fruits. Wash the affected area with warm water and soap, do not squeeze the damage with your hands, and use instruments to press out the blackheads and pimples. Avoid the use of cosmetics containing more oil and long-term use of iodide, bromide and corticosteroids and other drugs. Other therapies 1.Injections into the lesion: 0.05～O.1ml (10mg/ml) of de-inflammatory pine suspension, plus a small amount of procaine, for nodule and cyst damage injection, each interval of 1~2 weeks, several times. 2.Ultraviolet light (erythema) irradiation, or liquid nitrogen freezing (spray method or spot application) is suitable for nodular or cystic acne. 3.Laser irradiation: He-Ne laser machine 25mw expanded beam irradiation, 5-10 minutes per zone, 20-30 minutes each time, once a day, 10 times for a course. 4.Mask and inversion: The mask is made by combining drugs with organic substances such as polyvinyl alcohol, and the method is to apply a little film-forming agent to the face and remove the film in about 1 hour, which can be used once every 2-3 days depending on the condition. Pouring is a treatment method in which massage, medication and plaster are shaped by a certain procedure. At present more often used with cosmetic skin care effect of Chinese medicine or certain natural plants. 5.Self-blood therapy: draw 5ml of blood from its own elbow vein and inject it immediately into the buttock muscle, once a week, 4-7 times for a course of treatment. 6.Cryotherapy: mainly by spraying method, the nozzle is 0.5~1cm from the lesion, 1~2 seconds for non-inflammatory papules, 2~3 seconds for inflammatory papules, 3~5 seconds for nodular cysts, all to the extent that no blistering occurs after treatment, once a week. 7.Grinding: Mainly used for the treatment of depressed scars left by acne.