No bueno there my friend. I am fortunate in that I am not affected by PO, PI or Stinging Nettles. My wife didn't believe me about the PI, until I picked up a bunch from a plant in our back yard, and suffered nothing. The hill behind our garage is covered in the stuff. She, OTOH, is very much affected by them all. Makes hiking our river land an adventure in avoidance for her where I just plow on thru the itchweed...