I have an odd problem, and wonder if anyone has a suggestion.

I have a wart (probably plantars?) on the outside of my left foot, just below 
the joint of the small toe.  This is on the ridge of the foot, and a callus has 
formed there as well.  The whole thing is getting large enough that it has 
begun 
to hurt to walk on it.  I'd really like to avoid the ministrations of a doctor, 
if possible.  Any ideas?
MA