I had Keratosis Pilaris for several years, and now have red scars all over my upper arms. I went to a Dermatologist in Los Angeles who offers all kinds of lasers. He recommended a short pulse flash lamp dye laser treatment to blend in the scarred areas with the skin surrounding them. He suggested three treatments at intervals of two weeks, for a cost of $2500 each. This sounds like a lot of money to me, so I wonder, are his advice and estimate legitimate?