What should I do if my hands are frozen and swollen in winter?

If it doesn't fester, you can buy chilblain cream and other self-paints, but at the same time, you should pay attention to local warmth. If it has festered, you need to go to the hospital to prevent infection. Frostbite usually occurs repeatedly every year (in the same place), often when you don't feel cold. Watermelon skin can be dried in the autumn of the following year. When frostbite occurs in winter, it can be treated by decocting with water, soaking it while it is hot, or even uprooting it. I have personal experience of this!