I m suffering from pimples (acne vulgaris) since 2010.then I started use deriva Cms by Dr prescription for 8 months..now it little effective..now only 1to 2 Pimples or black head comes on my face in two or three months.. But in my face have spot of pimples and some scar..I want to remove spot and scar permanently.and wanted to find my face like when it was in 2010.my skin color neither fair nor dark..middle of fair and dark tone. Do I need comestic surgery.. How it will be cost??