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Chilblains (/ËtÊÉªlbleÉªnz/) â also known as pernio, Chill Burns and perniosis â is a medical condition that occurs when a predisposed individual is exposed to cold and humidity, causing tissue damage. It is often confused with frostbite and trench foot.
But chilblains are still very real. Today, the condition is also known as perniosis or pernio, but all the terms mean the same thing: a painful skin problem that results from exposure to cold and damp. The number of people in the U.S. who have contracted chilblains is not known, but in Britain, one in 10 is affected every year [source: Maroon].