Acne on the face grows hard and red and painful how to return a responsibility

Acne is considered to belong to, normal in adolescence more common. This is related to a variety of factors, including poor diet, mental stress and zinc deficiency in the body. The main reason is increased sebaceous gland secretion, and the bacteria in the hair follicle decomposition, showing inflammation of the hair follicle mouth, then it will grow this acne hard and red phenomenon.