Frequently (and not so frequently) Asked Questions
BRIEF: What could cause this condition?
I live in Oregon. Does any poisonous plants by the coast make a persons skin turn purplish, blistered, red and yet not itch? What about in the forest areas near the coast? My brother has something on his lower legs.
A heavy dose of poison oak can stain skin blackish or purple, but it sounds like something else. I would get him to a clinic in a hurry. I am not a doctor, but those symptoms could be indicative of some serious condition unrelated to plants.