Closed mouth acne pimples on the face all the time may be caused by improper diet, inadequate facial cleansing or endocrine disorders. According to the actual situation diet, good facial cleaning or needle clear, medication treatment. 1. Improper diet: Long-term dietary intemperance, love to eat spicy and stimulating food, will lead to excessive secretion of oil on the face, thus causing the face has been long closed mouth acne pimples situation. Usually pay attention to the regular work and rest time, avoid staying up late, eat a light diet, drink more water, eat more vitamin-rich vegetables and fruits, avoid spicy and stimulating food. 2. face cleaning is not in place: due to the face cleaning work is not done, resulting in face pores clogging, caused by the face has been long closed mouth acne pimples. It is important to do regular deep cleansing to adsorb the dirt and oil from the pores of the skin, thus reducing the appearance of acne. 3. Endocrine disorders: due to the rise in androgen levels, causing endocrine disorders, leading to excessive keratinization and blockage of follicle openings, resulting in the face has been long closed mouth acne pimples. You can go to the relevant department to adjust the endocrine, if necessary, do facial needle clearing treatment, or apply Vitamin A cream, adapalene gel and other treatments. If you have a face with closed mouth acne, you should develop good habits and go to the hospital to get a clear picture of the cause of the acne.