What the heck is a bone spur???

A bone spur is a prominence of the bone that can often cause irritation to the overlying skin. This "spur" can be an irregularity of the shape of the bone or can be a small outgrowth of bone or cartilage. If this prominence or "spur" is in an area that is prone to pressure from shoes or from the ground during walking, it can become symptomatic and begin to cause discomfort.

Ok, this really hurts... How did you fix yours???