hotsprings rash?

Believe it or not, Katrina was at the hotsprings yesterday. I soaked several hours mostly in the serenity pool. When I got home, I realized that I was itching everywhere. Upon further examination, I had developed a rash over my entire body. Someone had emailed me about a rash that he had experienced. Anyone experience this recently?

Other than the rash, I enjoyed myself immensely at the springs meeting several people and having a great time.