The first thing to do is to ascertain why there is increased pressure over the place where the callous or corn is developing. There is only one way to get rid of the pain and the callous or corn - remove the pressure. Both the corn or callous and the pain are friends - friends that are trying to help us. It is the localized increase in pressure that is the enemy to be removed. There are two directions that the pressure can be relieved, inside and outside.
Surgery can remove the inside half of the pressure by removing the bony prominence.
Shoe modifications can remove the outside half of the pressure by making more space or softness over the bony prominence. The best help in overcoming the localized pressure is determined by the cause. If the cause is pointed-toe shoes, the best remedy is to buy shoes that give more space for the toes and feet. If the cause is a deformed foot, the best help is reconstructive surgery to remedy the deformed foot or toes. Palliative or symptomatic treatment is often used but never cures.