It must not affect me, I've been around it many times with no problems. I've known people who would get a reaction quite a way downwind of it. When we moved here a couple of years ago there was poison ivy on the bank next to the garage. Neighbor warned me about it when she saw me out there with a weed wacker. I got some stuff at the hardware store made just for killing off poison ivy, sprayed down the plants, they died, haven't come back in two years now.
