And now that you have had it relatively bad, you can pick it up with out actually touching it. The oils can be transported by air short distances. I get small hot spots a couple times every year after I hike by some.

Horses and mules love to eat the stuff. So when they come up and rub the front of their heads against you...make sure you know where they have been .

For big spots, you need to go in to the Doc and beg for the 2% cream or a shot.