I assume you are referring to scars that are indented. If so, I suggest you look into two over the counter products Epidermx microderrabrasion and Silkia camellia oil. I had pitted scars from acne, and I used these products on them with great results, after faithful use of more than a year. My scars were like 2mm deep but they are hardly visible now. The only more visible scars are those above my lipline but they are still much much better looking than before.
It's certainly advisable to seek the advice of a dermatogist, but from what I have read and heard I can bet that there is no one way to get rid of indented scars fast (as in a couple of weeks or even a couple of months). I know of many who have spent thousanRAB of dollars on professional treatments with little results.