When I was a kid I got poison ivy almost by looking at it. My parents took me to a doctor and I got a poison ivy shot. I didn't have poison ivy for many years ( about 12 or 13) and when I did get it again I went looking for this shot. The doctor said that such a shot didn't exist and that the shot I had received must have been from Doctor Frankenstein.
For the past 40 years or so I have been using Rhus tox, which is a homeopathic treatment. Works very well.
I was on an herbalist retreat one time with Stephen Buhner and a group of his diehards. A few of those people plucked the baby leaves of poison ivy, popped them into their mouths and ate them.
Sorry for being so off track from the original post but since the lover of fine fat horses cracked the door I threw it wide open.