Hi. Greetings. Please note : Acne is a common problem at your age. Milk and milk products - excessive consumption of these can worsen acne. Reduce intake of chocolates and junk food too. Use a topical retinoid cream daily night. You may need a short course of antibiotics. Discuss other suitable forms of treatment with a qualified dermatologist. Hope this helps. Further queries may be sent on follow up messaging. Warm regards.