Re: Diagnosing allergy rash that comes and goes??
Did you do anything else different on the trip? Different soap, shampoo, laundry soap, dryer sheets, etc. anything that comes in direct contact with the skin. A lot of skin allergies are from such things. I'd try soap, shampoo, etc that has no dye and no scent for a few days and see if it clears up. An allergist might be able to identify it with testing, but it usually does not cover those types of allergies.