The doctors who saw them named the condition "Saturday night purpura." The condition is more commonly referred to as exercise-induced vasculitis: inflammation of blood vessels through exertion, which ...

But uncomfortable itchy rashes are another. Disney rash is a nickname for exercise-induced vasculitis (EIV), which isn't an actual rash at all (per Healthline). EIV is a skin disorder involving ...

Opinions expressed by Forbes Contributors are their own. Irene S. Levine is an award-winning travel and lifestyle journalist. It’s been variously called Golfer’s Vasculitis, Disney Rash, Epcot ...