My dad burned it on logs in the fireplace when I was young. I got it in my eyes as well as windpipe. I have multiple other PI horror stories from childhood.
Now I can easily identify it and Round-up for the poison ivy, Tecnu scrubbing for me. Label says rinse with cold, but if it continues, re-do and rinse with warm. Rinsing with the hottest water one can stand will increase the itch for a very short time, then alleviate it for several hours. Dishsoaps such as Dawn and Ajax will work in a pinch.
Allergy shots for several years also helped. They didn’t help with any of the other allergies, but definitely have made PI less intense