About a week ago, I got an itchy, red rash on my pubic area, with patches running down my leg to the knee. I thought it was chiggers. But then the itch turned to a dull burn after a day or two. It is now more of a deep, dull pain. The redness is subsiding a little, but the dull pain persists. It does not look like poison ivy/oak because there are no blisters. It looks like hives. I have spent time outdoors in the last two weeks, but I am otherwise clueless as to what caused this. I am certain this is not a sexual condition. Any suggestions?