Ever since I moved from Ohio to Tennessee (1975), I have been developing skin problems that continue to spread. I now have these round, red and raised marks all over my arms, legs, and back. They are crusty to the touch and sometimes (but not always) itch. Several dermatologists told me it was pre-cancerous skin carsinoma and had be scared to death of the sun. (I have not had a sunburn or tan since I was 16.) The last time I went to a dermatologist, he said it was not pre-cancerous. He used 4 initials in describing the problem and proceeded to treat it with a combination of Retin A (which I can't afford to get) and some other skin ointment. These spots sometimes open up and bleed. Can you help me?