Chilblains are a common problem in the colder climates, so are a seasonal problem.
This PodChatLive video was a deep dive into the issues of chilblains and is well worth watching. Podiatry Arena has all the latest research on chilblains and PodiaPaedia the latest on the treatment of chilblains.
Chilblains are a vasospastic reaction of the microcirculation to changes in temperature when the feet become cold. They start out a reddish coloured itchy lesions that turn a darkish blue cyanotic color if they become chronic