Chilblains are (Chill + Blayns) are those painful inflammation of small blood vessels in your skin that is caused by extreme exposure to freezing cold weather. Freezing air air is said to be the main cause of chilblains. It is also known as pernio and cold induced vascular disorder. It can result into itching and may cause red patches along with swelling on your hands and feet. Severe pernio can also cause painful blisters.
Generally, chilblains get cured within 1 to 2 weeks but if the weather is warmer it may help you in speedy recovery. Though it is painful but the treatment is very easy.