What we call acne and acne vulgaris are in fact called acne in our medical terminology. Acne is a chronic inflammatory disease of the sebaceous glands of the hair follicles that occurs mostly in adolescence and has a high prevalence, which can produce a psychological inferiority complex for the parenting teenager. There are various forms of acne lesions, such as pimples, papules, pustules, nodules and cystic pens. Depending on the severity of acne and the nature of the lesions, we classify it into three degrees and four levels. However, no matter which type of acne one suffers from, dietary regulation and proper care are important adjunctive treatment measures that will play a vital role in the treatment of acne. Patients with acne should not eat foods high in sugar and fat, and should stay away from spicy and stimulating things such as alcohol and tobacco. In daily life, you should eat more vegetables (bean sprouts, bok choy, ponzu, winter melon, loofah, bitter melon, water chestnuts) and fruits. Eating more foods containing long fibers and keeping the bowels open is also effective in preventing and treating acne. Recent studies have shown that there is a relationship between the consumption of dairy products and the severity of acne, therefore, less consumption of dairy products can also prevent acne. Since acne mainly occurs on the face and has a long course of treatment, patients are prone to seeking medical help in a hurry and are confused by some false advertisements for acne products, but most of these products contain ingredients such as keratin strippers and even glucocorticoids. This is not only detrimental to the treatment of acne, but can also aggravate the condition of acne or make the patient unable to tolerate topical medication and affect the therapeutic effect. Patients with acne should choose appropriate facial cleansers and skin care products according to their skin type and doctor’s recommendations, wash their faces with warm water in daily life, avoid excessive cleansing, and in principle should not use ointment cosmetics until the peak of oil secretion is under control. Acne patients’ skin itself has a damaged skin barrier, and some patients should pay more attention while receiving topical acne medication. The irritating nature of topical medication often aggravates the destruction of the skin barrier and causes skin sensitivity. Therefore, topical medical skin care products are particularly important as adjunctive treatments, which maintain and repair the skin barrier function on the one hand, and maintain a proper water-oil balance in the skin on the other. When acne skin is oily and not sensitive, oil-control and moisturizing medical skin care products are mainly used. Some acne patients who also have skin sensitivity, accompanied by skin erythema, dryness and flaking, should use anti-allergy medical skin care products. At the same time, acne is a skin disease that is aggravated by light, so physical and chemical sunscreens should be used on a daily basis, usually sunscreen sprays or sunscreen lotions. In addition, avoid squeezing and scratching the rash with your hands. Many patients habitually squeeze the rash, which not only fails to reduce the lesions, but also tends to aggravate the inflammatory reaction, which in turn leads to the formation of ruinous keloids, and in severe cases, bacteraemia. In their daily lives, acne patients should pay attention to moderate work and rest, reduce psychological stress, and maintain an optimistic and confident mood.