I'll be darned if I know what caused it. Hopefully, whatever it was, I'll never run into it again. Still covered with rash and welts (under the calamine lotion) and itching like crazy. I'm not taking any Benadryl tonight because last night was like I was on speed or something - could not sleep a bit. The only unusual or different thing was the Benadryl. Definately a very weird couple of days.
That's strange that you still have the rash and whelps.
You sure you didn't get into any poison oak or something?