What causes nerve pain in your foot? what stops it and will it cause me to not be able to work?

Neuritis: Nerve pain or numbness or burning is a common symptom associated with entrapment of a peripheral nerve in the foot. It is not debilitating, but very annoying. See your local podiatrist, an injection may be necessary to block the nerve and re-assess the symptoms post-injection.

Many reasons: What stops it depends on what caused it. And lastly, that would depend on the above prior answers.