On my back, there has formed an area of blotchy spots, muttled together. The skin is discolored and slightly raised. It is not itchy. It started as a small area of blotchy, raised, discolored spots, and has gotten bigger over the last few months. I have two small circles of it on the inside of my left arm as well. I am not irritated by it whatsoever. I am just concerned because the area seems to be getting bigger/more spots are forming.