Acne on the face of a 12-year-old girl may be caused by puberty, folliculitis and bad habits, which can be treated by adjusting lifestyle and medication according to the situation. 1. Puberty: When a 12-year-old girl enters puberty, androgens will start to be secreted in her body, and the change in hormone content will lead to the appearance of acne. Patients should pay attention to adjust the diet, eat less spicy and stimulating food, and pay attention to face cleaning. 2. Folliculitis: 12-year-old girl face acne, may also be endocrine exuberance, greasy clogged pores caused by inflammation, you can follow the doctor’s instructions for external use of compound neomycin ointment and other drugs. At the same time, eat less fat and spicy, fried food, eat more vegetables and fruits. 3. bad habits: if often eat spicy, stimulating and greasy food, often stay up late, irregular life and mental overstress and other reasons, can also lead to 12-year-old girl face acne. Try to go to bed early and get up early, eat a light diet, and develop a good lifestyle to improve the symptoms. If a 12-year-old girl has acne on her face, it is recommended to consult a doctor in a timely manner to identify the cause of the problem and then targeted treatment and treatment, to avoid unauthorized use of medication on the face of the skin to cause damage.