Liz it may not have been what you thought, any of us can develop an itching rash at any time, an allergic reaction to what , sometimes we never know, I often break out in rashes, and to this day have never found out what it is, my mother had a rash for over ten years that was itchy, they thought it could be something she was eating, but never found out, it just went away one day, so let us hope your's does not return, but don't be too sure it was what you thought.