I was wondering the same thing. I didn't realize that the oil from the three plants (oak, ive, sumac) was the same. I thougth I wasn't allergic to PI becuase I have never gotten it, but I am wondering if I am just immune to it. Also I read that it takes several exposers to become allergic. I dont' think that is the case. The first time I got it I had a severe reaction and swelled up like a balloon. Any ideas? |