After the patients have the phenomenon of recurrent closed mouth acne, they can be improved by general treatment, medication, and other treatments. 1. General treatment: these patients need to keep their face clean, and at the same time, they should have a reasonable diet, not eat spicy and stimulating food, and eat more vegetables and fruits. 2. Medication: The main topical medications are retinoids, such as adapalene gel, which can regulate the differentiation of epidermal keratinocytes. At the same time, you can also use benzoyl peroxide to dissolve microcomedones and kill Propionibacterium acnes. If necessary, it can also be combined with oral isotretinoin capsules and other drugs. 3. Other treatments: You can choose acne needles to squeeze out the pimples along with topical medications, but be careful of aseptic operation. Physical therapy such as red and blue light and photodynamic therapy can also be used as an adjunctive treatment for closed mouth acne to promote the inflammation to subside. For recurrent closed mouth acne symptoms, you should cooperate with your doctor for standardized treatment, so as to reduce the adverse effects of the disease. The above medications should be used in accordance with medical advice.