Corns on the toes can be very painful. They are caused by too much pressure on that area of the toes and the skin just thickens up to protect itself, then becomes so thick that it is then painful. The causes of that higher pressure are many and could be due to a bony deformity, a hammer toe or a bunion. A good podiatrist can easily remove a corn, but if the pressure that caused the corn is still there, then it is probably going to come back. For the best results long term, the reason for the corn needs to be identified and that reason removed. Sometimes that may need surgery to correct the underlying bone or toe deformity. Other times that may necessitate the wearing of a pad for pressure relief over the area. Almost always, an improvement in the fit of footwear is one of the better ways to get pressure off an area.
One way to self manage these problems is to remove the pressure. There are protective pads that you can use such as the toe foams . These are a soft foam made of polyurethane with a cloth backing. They come in longer tubes so you or the podiatrist can cut them to the required length to put over a toe to cushion and protect it. Some of the toe foams come with a doubled thicker area on one side for more protection. They tend to be used more in the short to medium terms as they are soft, they are not that durable. If they are helpful and need to be used more in the longer term then they are going to need to be replaced often. Always discuss your options with the podiatrist to see what they recommended as what they think are your best options over the longer term.