Health Check: what causes chilblains and how can I prevent them?
July 9, 2018 by Michelle Rodrigues, The Conversation
While some of us love the winter chill, this winter others will notice itchy or tender red lumps on their fingers and toes.
These small bumps are called chilblains (also known as pernio) and they occur with exposure to cold. While children and the elderly are most commonly affected, other age groups are not immune to this problem.
Several hours after exposure to cold, damp weather, the blood vessels in the fingers and toes tighten up and get smaller (called vasoconstriction) to keep the warm blood as far away from the skin as possible, as this is where heat is lost.
https://medicalxpress.com/news/2018-07-health-chilblains.html
