It will probably only hurt for the first few days...if the whole thing is bruised, eventually, it will fall off, but at that point, it won't be painful. That has been my experience when I've lost toenails.
~Cathy
"I always loved running...You could go in any direction, fast or slow as you wanted, fighting the wind if you felt like it, seeking out new sights just on the strength of your feet and the courage of your lungs."
-Jesse Owens