Acne is acne, drinking milk acne may be related to the composition of milk and part of the protein components, but also may be a mild allergy to milk or the skin itself and other reasons. Some of the protein components in milk, such as whey protein and casein, can affect the activity of androgen receptors, leading to elevated androgen, which promotes sebum secretion, thus leading to acne. Milk and other dairy products can promote the secretion of oil and aggravate acne formation. For otitis media with mild allergies or metabolic disorders that do not have good gastrointestinal function, drinking milk tends to produce a series of allergic reactions, and these allergic reactions include acne. Acne can be caused by a variety of factors other than milk itself. Problems with the skin itself, including overproduction of sebaceous glands, proliferation of microorganisms in the hair follicles, and keratinization of sebaceous ducts, can all cause acne. If acne is more serious, it is recommended to go to the dermatology department of a regular hospital to find out the cause and treat the symptoms with the help of a doctor.