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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.
What are examples of 'nonfreezing' cold injuries? Chilblains are a mild cold injury caused by prolonged and repeated exposure for several hours to air temperatures from above freezing (0Â°C or 32Â°F) to as high as 16Â°C (or about 60Â°F). In the affected skin area there will be redness, swelling, tingling, and pain.