The most common type of acne is acne vulgaris, or “pimples” that young people have. In fact, acne is a sign of youth. It is a disease caused by changes in hormone levels in the body, androgen stimulation of sebaceous secretion and keratinization of the hair follicle epithelium. Honestly, at our age, we don’t even want to grow it. Therefore, acne sufferers should not worry too much about it. There are rules for acne prevention and treatment: First, we cannot make fundamental adjustments to hormone levels, except in cases of severe acne. Secondly, we know that acne is caused by a series of processes such as the keratinization of the epithelial cells at the mouth of the hair follicle blocking the mouth of the hair follicle, poor secretion of sebaceous glands, increased pressure and rupture in the hair follicle, and bacterial infection. Therefore, we usually recommend washing frequently and with hot water at night to open the hair follicle opening and sebum drainage. In addition, you should not apply any facial oils at night, but rather apply some creams that promote the removal of epithelial keratinized material from the follicle opening, such as retinoids. In addition, do not squeeze acne to avoid infection, abscesses and cysts. For heavier acne, we need to consider a combination of oral medications to treat it, such as antibiotics, and women can also use female hormones. Very severe cases can also be treated with oral and topical isotretinoin. Of course, you can also use laser, photodynamic therapy and so on. In addition to the details of life to pay attention to every night to wash, not to apply face oil but to apply medicine, but also pay attention to the evening diet to be light, do not eat too greasy and high calorie, too sweet, stimulating food, do not drink, life should be regular, to work and rest on time, do not stay up late.