Do you know what PI looks like? I am highly allergic to it myself, but being able to id it means I can still do weeding and work around it without contacting it. If I see it in my garden I grab a shovel and hack it out before it spreads a lot.
It grows on the ground and also has the ability to climb. PI is a vine that grows laterally in soil or clings to something and grows up the structure.
Sometimes I'm not sure if I touched it while working or mtbing, so I scrub with wash rag and dawn. I've gotten some dots on my leg this year but very minor.
Feel better.
If it's 3 let it be. Look for three leaves per cluster attached to a vine.
View attachment 102613
View attachment 102614