Corns on the toes can be extremely painful. Corns are brought on by a lot of pressure on that part of the toes and the epidermis just thickens up to protect itself, then will become so thick that it is then painful. The causes of that increased force are numerous and could be due to a bony deformity, a claw toe or a bunion. A good podiatrist can certainly remove a corn, but if the pressure which caused the corn remains, then it is likely to keep coming back. To get the best outcomes long term, the reason behind the corn really should be recognized and that reason removed. Sometimes that will require surgery to fix the underlying bone or toe deformity. Other times that could require the use of cushioning for force relief over the area. In most cases, a vast improvement in the fit of shoes are one of the better methods for getting pressure off a corn.
One method to self treat corns is to take off the force. You can find shielding pads that can be used like the toe foams. They are a soft foam made from polyurethane which has a cloth lining. They are available in longer tubes which means you or the podiatrist can cut them to the desired length to place on the toe to cushion and shield it. Several of the toe foams include a increased thicker area on one side for additional protection. They generally tend to be used more in the short to medium terms as they are soft, they are not that durable. If they are beneficial and need to be used more in the long term chances are they will need to get replaced often. Usually discuss the options with the podiatrist to see whatever they suggest as the things they think are your better options in the longer term.