Last summer I decided to help my husband burn some brush piles out in the fields. Was out there all day and never touched the first leaf of poison ivy BUT when I got home found out I had it all over my body - even in my hair!! I had never had it before. It was so bad I went to the dr. Ended up having to go two rounds of the prednisone. Used Ivy Scrub and Calamine lotion too. It took six weeks for all to go away. It drove me CRAZY.They say it was the smoke that carried it to me. My advice - go to the doctor at once! Good luck