What the heck happened?

[onlyadream]

So last weekend my friend and I walked in the woods (north shore of Long Island), and after 20 minutes my friend complained of itchy arms and legs (she wore short sleeves and shorts). We looked at her skin and saw nothing. She kept complaining, and said it was hard to describe, like an itchy burning feeling all over.

I didn't feel anything, until about an hour after I got home. All of the sudden my legs were itching and burning. I wore jeans, which I peeled off as fast as I could, it was unbearable. How my friend stuck it out for an hour with me I don't know. I took a shower and washed my clothes and all is well now.

I just have no idea what caused it. Anyone know?