My sister says i have a planters wort? What is that?

Bloody hell, I tell ya there a pain in the ***. I had one and it takes like two months to get rid off. It is basically an in grown wart - a couple mills deep of hard solid dead skin. How you treat it is you go to the chemistand they'll give you a cream that you have to apply daily on the wart and it will basically eat away the dead skin - it does hower take a while still to get rid of it completely - it's sore hey, hope u get better