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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.
The dilemma. If you've never had a chilblain, you may wonder what the fuss is about â and why some people quake in their sheepskin boots when the weather gets chilly. Chilblains are painful, burning or itchy red and blue patches that appear on extremities such as the fingers, feet, ears or nose. One in 10 people suffer from them when these parts of the body are suddenly warmed up after being exposed to the cold (winter is peak season for chilblains).