About five months ago, I had a mole removed from my buttocks via the punch biopsy method. The dermatologist sewed up my would with non dissolvable stitches which were taken out 10 days later. He assured me that my scar will just be a white line. Now that five months has passed, I saw that the scar is has become a raised red, thick scar tissue with suture track lines. I am very upset about the appearance of this and was wondering if there is anything I can do to fix it.