Corns on the feet are due to too much pressure on that location the location where the corn is. To remove corns, all you need to do is take away that pressure that caused the corn. Its that easy. A corn or a callus is part of a natural process which the skin goes through to protect itself. When there may be too much pressure on an area of skin, the skin thickens up to protect itself. However, if that pressure remains over a long time, then the skin becomes so thick that it is painful. If that pressure is spread over a bigger area of skin, then that is called a callus. If that pressure is over a lesser more focal area of skin, then that may be a corn. The causes of that increased pressure could be a variety of things such as a hammer toe, hallux valgus or a prominent bone. A proper assessment is usually needed to establish just what it is that is causing that higher pressure and exactly how simple it will be to reduce that higher pressure.
To eliminate corns totally, you ought to take away the cause. An experienced podiatrist could easily remove a callus and corn by diligently debriding it using a scalpel. Nevertheless, that corn will return when the cause is not eliminated. They just do not return because the podiatrist didn't remove it correctly or because the corn has roots (they don’t). They keep coming back for the reason that the pressure which caused them continues. That ought to be taken away if the corns is to be prevented from re-occurring. The way in which that pressure is taken away is determined by what is causing the higher pressure. It could be as easy as finding a better fitting pair of shoes or perhaps it is as complicated as needing some surgery to take care of the toe deformity that is causing the pressure creating the corn.