Most importantly avoid scratching.
Wearing warm clothing. Wear woolen or cotton socks.
Use calamine lotion or witch hazel to soothe the itching.
Gentle exercise will improve circulation to your feet.
Onion is best for chilblain. If you suffer from chilblain use this remedy regularly winter. Cut a raw onion . Use the cut edge all over the chilblains; let the juice soak into the skin. The severity of itching dies down almost instantly and also helps in reducing the chilblain.
Egg and Honey can also reduce chilblain. Take a tablespoon of honey, a little glycerin, and one egg white. and add to this a little flour . Mix in to a paste. Apply all over the chilblain. Leave it on for 6-8 hours. Wash off. Cures your chilblain very quickly.
Potato is treatment for chilblain. Slice a potato. Sprinkle some salt on it. Rub it all over the chilblain. Helps to soothe the itching and redness.
Regular Massage will helps to reduce chilblains. Regular massage of hands and feet in winter with any warmed vegetable oil, with a few drops of lemon added, improves circulation. Use the discarded halves of lemons to cup them around fingers/toes, and rub them for a while. Wash off with warm water. Helps in reducing the chilblains.
If you have suggestions or know of a proven home remedy add it here in the comment area.