I have had these brown spots for the last 20 years. It grew from a small spot to this big in all these years, and it is still spreading slowly. It does not itch, nor does it pain, but when I get out in the sun, I feel a burning sensation all over the area. I once used Skinlite cream, and the spots were visibly lightened, but they reappeared. I want to know what medication I should take and what precautions to take so that it does not spread any more. Is there any way I can get rid of these spots? I have attached the pictures.