I'm sorry to hear that. I doubt anyone here can give you advice, though, without a little more information.

How long has this been going on? Have you seen a doctor about it? If so, what did the doctor say? When does the pain occur? Can you describe it better? Is your foot bruised or swollen? Where exactly is it? Did you have an injury to your foot that might have caused it? Anything else that might be relevant?

Good luck.