Since the hand has frostbite, as long as it turns cold, the hand will turn red. No one else has seen such a situation. Is there any way? What is this?

This situation should be that after frostbite, the local capillary bed is damaged, which can be recovered this summer, but it may not be fully recovered, and it is easy to relapse.

Guiding opinions:

In this case, one is to keep warm and moisturize, and the other is to use some glycerin or other antifreeze cosmetics, and try to wash your hands with warm water every day.