I had that a zillion times, especially when I was property manager on 105 acres that was loaded with poison oak. Each time I got it was less and less until I just built up a resistance to it. Now it barely does nothing. I had a coworker that was using his cable pulling gloves to pull a lot of it out. Then he loaned same gloves to a Mexican kid. Just nailed him, everywhere especially his face, he missed three weeks of work. Worst I ever saw was a guy on a cleanup crew who had this not so brilliant idea to burn it. Breathe deep, the gathering gloom, watch light fade from every room. I thought he was going to go into respiratory arrest. I tried not to laugh in his face. That Bruce patch is kid stuff. Just cover it with Calamine and go fishing. Leaves of three, let it be. I used to get a lot of eradication calls on it, not so many anymore. DIY with specifically made products.