Corns on the toes can be extremely painful. These are a result of a lot of force on that part of the toes and the epidermis just thickens up to protect itself, then will become so thick that it's then painful. The sources of that higher pressure are numerous and could be due to a bony deformity, a claw toe or a bunion. A competent podiatrist could easily get rid of a corn, however, if the pressure which created the corn is still there, then it's likely to keep coming back. To find the best outcomes long term, the main reason for the corn has to be identified and that cause taken away. Occasionally that may need surgery to improve the underlying bone or toe disability. Other times that could necessitate the wearing of cushioning for pressure relief over the corn. Usually, a noticeable difference in the fit of footwear is the most effective methods for getting force off a corn.
A great way to self treat these complaints is to take off the pressure. You can find protective pads which you can use like the toe foams. They are a soft foam made from polyurethane with a cloth backing. They are available in longer tubes so that you or the podiatrist can cut these to the required size to place on the toe to cushion and shield it. Several of the toe foams include a doubled thicker area on one side to get more cushioning. They tend for use more in the short to medium terms since they are soft, they aren't that long-lasting. If they are beneficial and need to be used more in the longer term then they will need to be replaced frequently. Usually talk about your alternatives with the actual podiatrist to determine whatever they recommend as the things they determine to be your better alternatives over the longer term.