At the end of last year I started dealing with allergic contact dermatitis. I had an allergy test done, and now I know what I am allergic to (and how to avoid it; for the most part). But I still have some old stains from skin reactions I had. Is that possible? Shouldn't that reaction go away over time? My main question is: Does anyone know of anything I can apply on the stains, or anything I can do at all for them to go away?