Poison Ivy On Arm. Poison ivy is a plant that can cause an itchy, uncomfortable rash on your skin. My right arm was a bit worse than my left, with a large leathery rash (almost looked like a burn?) from just below my wrist to.
Matt Wachsman: Not the first thing: poison ivy is an immune reaction to an oil. Poison Ivy plants also grow berries, which are just as toxic as the rest of the plant. A rash from poison ivy, oak, or sumac looks like patches or streaks of red, raised blisters.
It can remain on uncleaned clothing for a year and still cause a rash upon new contact with skin.
When they ripen (in late summer to early fall), they turn from a pale green to a whitish color.
Matt Wachsman: Not the first thing: poison ivy is an immune reaction to an oil. A rash from poison ivy, oak, or sumac looks like patches or streaks of red, raised blisters. I also take and herb called Quercentin and put silver salve on the places I scratched.