What the heck is this? Need a Diagnosis.

[MarineHawk]

Originally Posted by CO Hummer

Definitely not. They itch way too much.

Chiggers almost always bite under some kind of tight clothing, like socks, or, if the case may be, underwear. In my experience in chigger-infested central Kansas, they almost never bite on open skin. So, unless you were wearing a speedo thingy, it's probably not chiggers.

http://science.howstuffworks.com/question488.htm