Hi. Greetings. Acne are a chronic issue - the "dana dana" that you r mentioning could be white heads - which are a type of acne . The following would help you : 1. Daily use of gel based sunscreen in day time of SPF 30 applied half hour before sun exposure - prevention of darkening of post acne spots 2. Daily bed time use of retinoid cream. 3. Chemical peel with salicylic acid would help - about 4-6 sessions 4. Evaluation by dermatologist - also above treatment to be taken under professional guidance and prescription 5. Kindly read my blog on daily skin care on Practo health feed. 6. Daily fitness work out and loads of fruits and veggies will help loads in improving your skin. Further queries may be sent on follow up messaging Hope this helps. Warm regards. Dr Govind S Mittal, excel care hospital, Bangalore.