OMG. You poor thing! Although I do have personal experience with Winter Poison Ivy as well. That stuff is lethal in any season!!! See if you can remember where you were and tie a ribbon on that stuff. That way you can avoid it more easily until you can get rid of it. And cold compresses will help with the itching.
What the heck!?! I didn't know you could get it in the winter - geez is right!
From your hay? Or how?
You didn't eat a mango, did you? I found out the hard way that they are related to poison ivy and you can suddenly start to react to them...