what we are dealing here is with acne
you can either visit a plastic surgeon or a dermatologist
who is trained in dermatosurgery procedures
the type of procedure you will depend on the type of scar, which can be best decided by a doc on visual inspection only.
procedures like peels, dermarollers, microdermabrasion
. lasers, subscision, punch grafting... many of them are available but again decision on what will suit you will depend on the doc
so bette visit a dermatologist or a plastic surgeon
medicines will help only if the scars are restircted to superficial layers of skin