It's best to talk to your doctor about what the damage is. Then they can direct you to specialists who may be able to help, depending on what the issue is

depends

Nerves can recover if the injury is not permanent, but this is a slow process. I recommend you make an appointment with a foot and ankle surgeon (podiatrist) for diagnosis, evaluation and treatment options

That is entirely dependent on what type of nerve damage you have. If you have generalized 'Neuropathy,' there are medications that may control the pain from such conditions. If you have Tarsal Tunnel, that may get better with injections or surgery. If you have a pinched nerve in your spine, a neurosurgeon or Orthopedic Spine surgeon may be able to help. BUT many nerve-related conditions are not treatable and can not be fixed. You need a very thorough evaluation, possibly with NCV/EMG studies, MRIs and other modalities of testing.

You should consult with your local podiatrist or neurologist.

The answer is it depends on the extend of the damamge, and only way to know of this is thru exam and test.