Every day we encounter a large number of acne sufferers, the vast majority of whom are unaware of the triggers of acne, not to mention how to control it in terms of diet and lifestyle habits. Therefore, the following is a small summary that we hope will help. 1. Possible triggers of acne: a) Excessive stress, sleeping too late, emotional anxiety. b) Too much sugar, dairy products, starch, fried food, fat, spicy food. c) No good skin care habits, incomplete cleaning of the skin, clogged pores. Or over-cleaning, washing the face 3-5 times a day, causing the skin to lack oil and water, instead inducing overproduction of sebaceous glands. d) Self-clearing acne with row of needles or squeezing acne, causing pore infection, dermal inflammation and scarring. e) Changes in endocrine secretion. Some women have increased acne before their periods, along with dysmenorrhea, etc. They should check the sex hormone six items and polycystic ovary syndrome. 2, acne patients diet strategy: a) Contraindicated foods: fatty, sweet and greasy, sweet drinks, fried food, fat, dairy products. b) Suitable foods: seafood (rich in polyunsaturated fatty acids, can reduce sebum secretion, anti-inflammatory), red vegetables (such as carrots and tomatoes, both should be cooked, otherwise they are not easily absorbed), high-fiber vegetables (such as celery, cabbage, etc.). 3. Acne skin care: a) Cleanse the skin carefully and use a facial wash containing scrubbing particles if necessary to reduce the clogging of follicular pores. It is not easy to wash your face more than 3 times. b) After cleaning, you must use an oil control and moisturizing cream, otherwise the skin will secrete more oil under the effect of negative feedback. c) If inflammatory acne is more frequent and the skin is sensitive, a mask with soothing effect, such as FGF mask, should be used regularly. d) Acne-prone skin tends to form acne and scarring under the action of UV rays, so be sure to use sunscreen. In winter, you can choose a day cream with sun protection factor, and in the rest of the season, you must apply sunscreen externally, and medical skin care products are recommended. 4, acne topical medication application: Acne commonly used topical medications, including Bangsai (benzoyl peroxide), which dissolves keratin and sterilizes; Ansus (isotretinoin); Daphne (adapalene), etc. are all somewhat irritating. If you apply it directly on the affected area and massage it in, it will cause irritation such as redness and edema, which in turn will cause the aggravation of “acne”. Therefore, it is important to learn the correct usage. a) Apply an oil-control moisturizer for acne on the entire face. b) Apply the medication to your left hand in a thin circular motion on the tiger’s mouth. c) Dip your right index finger into the medication and dab it on the lesions one by one. d) Apply sunscreen to the whole face (acne skin is very afraid of the sun). 5.Medical beauty program: a) Open blackheads and closed whiteheads: fruit acid resurfacing. b) Inflammatory papules, enlarged pores, seborrhea: intense pulsed light; red and blue light; photodynamic. c) Persistent erythema of acne: intense pulsed light; pulsed dye laser. d) Acne scarring: CO2 fractional laser; pixel laser; super platform.