Medically reviewed by Jurairat J. Molina, MD Chilblains, also known as pernio, is an uncommon condition in which tiny blood vessels in the hands and feet (and sometimes the ears or nose) become ...

Chilblains, or pernio, occurs when small, itchy, swollen lesions form on the skin after exposure to cold, damp, or dry conditions. Chilblains can also occur after exposure to infections such as ...