text: Rash all over body starts on head itchy but bearable, then spreads all over body rapidly first looks like nettle sting but then turns extremely red ?
target: I was picking weeds in my backyard and noticed an itchy rash all over my body which starts on head and spreads rapidly to the rest of the body, turns very red and looks like stinging nettle or poison ivy. How do I know what it could be? Should I go to the ER?