Acne around the mouth and chin long acne commonly caused by acne, belongs to the follicle sebaceous glands of the chronic inflammatory disease, can follow the doctor’s instructions for general treatment and medication and so on. 1. General treatment: Choose water or suitable cleansing products to remove excess oil, dander and bacterial mixture on the skin surface, pay attention to oil control and moisturizing, and use mild moisturizing milk. Avoid squeezing and scratching the skin lesions with hands. Limit the intake of high glycemic index foods and milk, which may trigger or aggravate acne, keep bowel movement smooth, and avoid staying up all night. 2. Medication: Topical medications such as retinoic acid ointment and benzoyl peroxide gel, and systemic medications such as isotretinoin can be used under the guidance of a doctor. 3. Physical therapy: including photodynamic therapy, laser therapy, etc. for treatment, but pay attention to the occurrence of pain, scabs, scarring and other adverse reactions. Acne around the mouth chin long acne is recommended to go to the hospital in time to avoid delays.