Poison Ivy
Poison Oak
Poison Sumac
Information about poison ivy, oak, sumac and the skin rashes they cause
Information about poison ivy, oak, sumac and the skin rashes they cause
This nasty rash has a very particular shape to it, with a long line leading to a deep bubbly rash.
My guess would be that a poison ivy branch scraped along the leg, scratching urushiol oil into the skin and cutting in deep where the bubbles are.
Something like that.