|Chilblains are also referred to as pernio or perniosis. They are small, itchy, painful swellings that generally appear on the skin after several hours of exposure to cold temperatures. Thus, they tend to develop during the winter months.
They are more likely to occur on the extremities such as the toes, fingers, nose and earlobes, which are the first areas to become cold. Other areas of the skin such as the heels, thighs and lower legs can also be affected in extreme temperatures.