i have had a rash that started on the top of my feet looking like ant bites. it has been there 2 months and is very painful. sometimes the rash is fluid filled and it has spread to my torso. never on my chest or face. it is extremely painful. . it later becomes scaly patches that look like shingles.nothing has helped- cream, benadryl, lotion or cortisone. i itch constantly and sometimes cause myself to bleed by scratching so intensely. it pops up everywhere except my face, hands, neck or upper back. i have kidney disease and didnt know if somehow this rash could be being released by some chemical in my body.