The appearance of small bumps on the face, which are not painful or itchy, is most likely to be considered acne if the patient is in puberty. Acne mostly occurs around puberty and is caused by a combination of factors such as high androgen levels during puberty, which leads to exuberant secretion of sebaceous glands, and Propionibacterium acnes infection, which causes abnormal keratinization of follicular sebaceous gland ducts. Most of the acne after puberty is related to cosmetics or hormone levels. After the appearance of acne, you need to pay attention to your diet and avoid eating a lot of spicy and stimulating food, so as not to aggravate acne. Topical medication can be used topically to avoid scratching and squeezing to avoid the formation of acne pits and acne marks, and can be given as peroxybenzoyl gel once in the morning for topical application and adapalene gel once in the evening for topical application. Note that a small amount of topical application, because the above two drugs are mildly irritating, but also has the effect of exfoliation, so it must be a small amount of topical application.