How to get rid of dry, scar tissue like areas on my legs

[topsailmom]

About 2 years ago, while in Aruba, I developed a skin rash that looked like small blisters on both legs. three areas about the size of a quarter.  They itched and ozzed, but eventually the area just turned into dark areas of raised skin, almost like scar tissue.  I have very dry legs, and a dermatologist gave me a steroid cream to use.  I used it for awhile, and they got better, and the one on my left leg has pretty much disappeared.  But on the other leg, two years later I still have to areas the size of a quarter each that just won't go away.  I've started to use the old steroid cream again, and they have gotten a little smaller and the area around them is no longer a dark color.  Unfortunately, I'm always picking at them as the skin is very dry and seems flake a lot.  It's like having to ugly areas of dark, scar tissue on my legs.  Any suggestions on how to get rid of them?

TopsailMom