Hi. I have a skin irritation that has developed just on my shins. Red, inflamed, looks like small burns. I ve used calamine lotion and it seems to be clearing up. Now I m noticing the same marks on my hairline and on my rib cage. Not as severe but it s concerning. I ve ruled out any change in detergent, soaps, shampoos, razors, lotions, etc. Nothing has changed in my diet or anything. Can you help?