content: Yeah, I agree.  Whenever I deal with poison ivy, I wear long sleeves and I try to cover any exposed skin.  I wonder if it's possible if you are coming into contact with the oil from your clothes. I just came up with a million dollar idea.  We create a spray that will show any of the oil as a visible color.  I bet Monsanto could make something but long term effects would cause warts and extra appendages.