No feeling on tip of finger after 24h of being completely frozen from cold. or, could be from injury which occurred 4 days ago. break or frostbite?

What color is it?: Frostbite means loss of circulation so your finger's color should nit be normal.

Numbness/pain: Could be either or both. Get an x-ray and exam by orthopedic hand surgeon. Frostbite can cause major soft tissue and bone damage.

Cold injury: Cold injuries to nerves are likely to produce numbness vs a crush or break causing pain. If you had a cold injury that was bad enough to cause persistent numbness it is a good idea to have a doctor take a look at your finger.