What Is The Treatment For Small Hard Bumps On The Toe?

i have these small hard skin bumps on my toe, just one and ti have these small hard skin bumps on my toe, just one and they hurt and it started out with 1 then 2 and then i was looking at it again and i have a small one coming in , can you tell me what it is before i go to the doctor and waste my money (: please and thank you