Wear warm shoes, socks and gloves. Wear a hat and a scarf to protect the ears and the nose. Avoid tight fitting socks/shoes. Other
Exercise at least four times a week to improve circulation. Quit smoking, as it damages circulation. Treatment
Nifedipine and amlodipine, which are vasodilators in the class of drugs known as calcium channel blockers, may help in some cases. Vasodilation may reduce pain, facilitate healing, and prevent recurrences. It is typically available in an oral pill but can be compounded into a topical formula. Diltiazem, a vasodilator, may help. Apply a mixture of friars balsam and a weak iodine solution. History
The medieval Balds Leechbook recommended treating chilblains with a mixture of eggs, wine, and fennel root. A modern-day home remedy is to put garlic on the chilblains. Neither of these remedies has been supported by scientific research. COVID-19
Chilblain-like symptoms have also been linked to COVID-19. COVID toes, as they are commonly known, have mostly been reported in older children and adolescents, who often have not had other symptoms of COVID-19. The symptoms are usually mild and disappear without treatment. Their cause is debated: it is uncertain whether COVID toes are a delayed consequence of the viral infection itself or are, at least partially, connected to environmental factors during the COVID-19 pandemic. They may share some of the microscopic features of chilblains caused by lupus.
It has been suggested that in the absence of exposure to cold and damp, COVID-19 should be considered as a possible cause of chilblains.In a study at the dermatology department of Saint-Louis Hospital in Paris, researchers found that most of their study participants carried high levels of autoantibodies, proteins generated by the immune system that inadvertently attack the bodys own tissues. Compared with healthy individuals, the participants showed high activity of proteins called type 1 interferons, which switch on pathogen-fighting genes in immune cells. See also
Equestrian perniosis
Erythrocyanosis crurum
Raynauds disease

References
External links

DermAtlas 1683395337
Cold stress, National Institute for Occupational Safety and Health