Thanks for asking our opinion on Rhus Tox. We found out about Rhus Tox a few years ago. I am highly allergic to poison ivy. My daughters are allergic as well, must be inherited from me.
We take it every February before our Spring Break in March. There is a lot of poison ivy where we camp. Now with the help of Rhus Tox, I can step over or walk by poison ivy and not get it. In my youth, I would get it so bad my eyes swell shut from just being down wind of it.