Blackhead acne, also known as blackheads, is a type of open acne. It is mainly caused by high sebum secretion and abnormal keratinization of hair follicle opening. It can be treated by topical medication, fruit acid peeling and daily protection. 1. Topical medications: commonly used are Vitamin A acid, azelaic acid, adapalene, etc., which can reduce sebum and dissolve acne. 2. Fruit acid peeling: It can make the keratinocytes of epidermis shed to different degrees, accelerate the metabolism of the stratum corneum and the renewal of the epidermal cells, so as to achieve the purpose of treating and repairing the skin with blackheads and pimples. 3. Daily protection: attention should be paid to daily cleansing, keep the face dry, avoid excessive oil, and reduce the intake of high glycemic index food, which may aggravate acne. The above medications should be used under the guidance of a physician. If you have recurring episodes and severe symptoms, please go to the hospital in a timely manner.