What treatment can I get for my raised scar from cortisone shot 14 years ago? (Photo)

I had a cyst on my cheek, and I asked a dermatologist if he could inject cortisone shot into it. I also asked him to inject on two other pimples on my temple. I now have these raised scars that look like bumps, on the spots he injected cortisone which I circled in red. They weren't as noticeable many years ago, but have become more pronounced as time went by. Is there any good treatment I can get from a good dermatologist, that can get rid of these raised bumps/scars? I live in the SF Bay Area.