i just started with a rash like that a few days ago on my ankle. It has spread around it and the backs of my legs.. they are huge blisters and nasty puss and they are unbearably itchy.. my dad said it may be poison sumac, which i was near at their house.. but poison sumac is in wet areas.. and the plants are in a dry area and its northern michigan. It looks much like your photo, but they are much larger now.. Did you ever figure out what it was?
