Acne refers to acne, which may be caused by factors such as abnormal androgen levels, exuberant cortical secretion, and abnormal keratinization of the cells around the hair follicles. It can be treated by general therapy, medication, and chemical peeling therapy under the guidance of a doctor. 1. General treatment: use warm water or mild cleanser to wash the skin, do not squeeze, friction, try to eat less or not eat high sugar food, reduce milk intake, do not stay up late. 2. Medication: It can be treated by topical adapalene and other medications or combined with oral minocycline, doxycycline, erythromycin, erythromycin, and rosmarinic acid, etc., under the guidance of a doctor. 3. Chemical exfoliation therapy: mainly using fruit acid, salicylic acid or complex acid to improve mild to moderate acne and prevent post-acne hyperpigmentation. Parents are advised to lead their patients to the hospital in time, under the diagnosis of the doctor, according to the development of the condition, to take targeted treatment.