At the age of 30, acne is still related to endocrine disorders and bad habits, so it is necessary to target medication, regulate the endocrine system and improve bad habits. 1. Medication: topical medications include retinoic acid ointment, adapalene gel, fusidic acid cream and other medications; oral anti-inflammatory drugs, such as doxycycline and minocycline, if necessary; rashes with nodules and cysts are the main ones, and non-pregnant, pregnant, breastfeeding women can be taken orally as isotretinoin capsules for treatment. 2. Regulate endocrine: polycystic ovary syndrome, androgen absolute or relative elevation caused by the decline in ovarian secretion ability, can promote the skin oil secretion exuberant, induced the appearance of acne. At this time, in addition to the treatment of acne, it is also necessary to treat the primary disease and alleviate the premature failure of ovarian function. 3. Improve bad habits: Staying up late, eating foods high in sugar and fat, and not cleaning the face properly can stimulate the sebaceous glands to secrete too much oil, which can trigger the reproduction of Propionibacterium acnes. At this time, you should pay attention to facial cleansing, regular routine, and reasonable diet. For more information, please go to the hospital and follow the doctor’s instructions for medication.