Corns are a common condition of the foot that may be painful and difficult to treat. Corns and callus are due to a lot of pressure on an area of the skin. They are part of a normal process that has gone wrong. If there is too much pressure on the skin, that region of skin will thicken up to protect itself. When the pressure carries on over a long time, it might be so thick that it is painful. This really is the same as the mechanism which happens when, by way of example, chopping wood. Doing this, you ultimately develop a callus on your hand. Exactly the same thing happens on the foot with pressure from the ground or pressure on a toe from footwear. When you stop chopping wood, the thicker skin on the palms disappear. The problem in the foot is that you keep using footwear and you keep walking, so the pressure continues and the thicker skin forms into a corn and will become painful.
Getting rid of corns is fairly easy and a skilled podiatrist can easily take them out. That's the simple bit. The difficult part is stopping them coming back. It is one thing to take them off, but if you don't get rid of that cause (the greater pressures on the region), then they will just keep coming back eventually. Corns don't have roots that they re-grow from. They keep coming back since the cause is still there. Removing a corn is a lot like managing the symptom. They are going to return unless the reason is taken away. That's where the skill of a podiatrist is necessary to find out the proper cause. A complete assessment is needed of the function, footwear, foot structure and activities to sort out just what it is that causes the higher pressure. Once that reason has been determined, then different interventions can be used to get rid of that pressure. This could range from simple shoe advice to foot orthotic to surgical treatment.