Chin acne closed mouth pimples are generally acne lesions manifestations, mostly due to endocrine disorders, sebum secretion increased clogging pores, may also be associated with bacterial infection, inflammation, etc. Treatment includes general treatment and drug therapy. 1. General treatment: Pay attention to facial skin cleanliness, wash your face with lukewarm water and choose suitable toiletries. We should eat a light diet, as far as possible, do not eat sweets, greasy food and spicy food, try not to stay up late, regular work and rest, appropriate exercise, maintain a good and healthy state of mind. 2. medication: you can use tazarotene gel, adapalene gel, etc. You can also use fusidic acid cream, clindamycin phosphate gel and other antibiotic drugs. When the symptoms are serious, you can take oral isotretinoin, doxycycline and other drugs for treatment. If the symptoms are not relieved after lifestyle modification, you should consult a doctor to clarify the cause of the problem and treat it under the doctor’s guidance. The above medications need to be used in accordance with medical advice.