It is often difficult to tell from a picture, and you should see a facial plastic surgeon or a cosmetic dermatologist for a consultation. It appears that you have post-inflammatory hyperpigmentation (PIH) as well as depressed pox scars. The brown color can be improved with bleaching creams, chemical peels or Q-switched lasers. The contour can be improved with fillers and/or needle subscision therapy followed repetitive vacuum suction treatments.
Best of luck to you.