<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, I am 31 years old female. For the last one year I have been having severe problem with acne . I ve never had acne as a teenager or anytime before this. Initially I used salicylic acid facewash 2.5, alongwith 2.5 benzac AC which seemed to reduce the acne considerably in a month. However, the acne recurred and the same medication did not work again. Right now for the last one week I have been using prescription medicine as follows: 1: deriva MS - applied all over face for 1-2 hrs. 2: benzoyle peroxide facewash 4 twice a day. 3: facelinebenzac 2.5 combination on the comedones every night. Now the comedones have come down but have instead become flatter and my face looks really red all over. How do I get rid of these red scars and how do i prevent further acne?  <response>: Hi there. At the outset, I note your problem has been present awhile now. No single treatment regime in acne works for all patients. If there is one medication that has universal appeal in acne management it has to be Roaccutane systemic isotretinoin. It however has side effects your dermatologist will be the best person to explain these in detail, take a consent form you before starting do a series of preliminary blood tests as per protocol at regular intervals during treatment. From your description you will definitely do well with a non-comedogenic sunscreen I usually recommend Bioderma sunscreens formulated especially for acne patients to reduce the redness while using systemic isotreinoin therapy. Cheers Good luck with your treatment! 