It can come back if the part is exposed to severe cold again.
The damage may be more severe on previously injured parts. This is partly because the scarring can reduce the sensitivity to heat and cold of the affected area (so you don't notice until too late) and because scar tissue can have diminished blood flow.
Frostbite will not come back spontaneously, although past scarring can cause other issues, such as phantom pain (due to past nerve damage) and even necrosis if damage to blood vessels was severe enough (though any damage that severe would likely lead to tissue death in the first place).
Yes blood infections can reoccur.
Can hantavirus reoccur in the same person
Frostbite is not mold.
Frostbite is freezing on the skin.
yes
You can get frostbite if you live in the UK.
a famous person who had frostbite
*Sighs* (Don't try this joke). Frost bite...?
Deep frostbite is when the area is frozen completely.
Yes, frostbite is a common noun.
The ISBN of Frostbite - novel - is 9780307460837.
Yes, Legionnaires' disease can reoccur. This disease is a severe form of pneumonia caused by a bacterium known as legionella.