This is my practise message column. Hi. Greetings. Please note : Acne is a common problem at your age. Milk - excessive consumption 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 your dermatologist. Once your acne are in control marks can be treated. Hope this helps. Warm regards. Let me know if u need any further assistance in this regard