To prevent acne, first of all, every step must be done from the inside out. From the outside skin, the first is to wash your face with warm water, why not use cold water or hot water, hot water at once open the pores too large, long-term this way it is easy to form the expansion of pores. The other is that the pores are large, if it is cold water, the pores are closed face wash only to the surface of the skin surface of some dirty things, pores of many things are not clean, so try to use warm water to wash your face, generally about 37 ° warm water is more suitable. In addition, if the demand for a variety of work or the pursuit of beauty will have to put on some makeup, makeup must be removed and to remove clean, so as not to lead to clogged pores. In addition, eat more food containing vitamin A, vitamin B, and trace elements of zinc. These foods will help the stratum corneum to shed, keep the pores open, and can achieve the so-called emollient effect, so eat more of these vitamin A, vitamin B or trace elements of zinc or richer food. In addition from the inside of the body, their own focus on eating as little as possible damp food, such as chili, wine, durian, mangoes, sweet and greasy things, these damp things should also be avoided. There is also not to stay up late, stay up late will lead to endocrine disruption, endocrine disorders, hormone level abnormalities are also the cause of acne.