Does frostbite heal?

Depends. Just like there are different degrees of burns, so too there are different degrees of frostbite. The worst typre results in dry gangrene.
Yes but nut fully . With proper rx it will heal depending on the degree of the burn. 1st no problem, rx like a sunburn. 2 with blisters keep clean don't pop them. Shower & wash with soap & h2o.Antibiotic ointment preferable silvadine cream, need rx. 3 rd needs immediate professional care. Also 4 each it depends on the total area of the body involved.