Corns can be a frequent problem of the foot that may be painful and difficult to treat. Corns are caused by an excessive amount of pressure on an area of skin. They are part of a natural mechanism that has gone wrong. When there is a lot of pressure on the skin, that area 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 is just like the process that happens when, for example, cutting up wood. Doing this, you eventually make a callus on your hand. 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 challenge in the foot is that you keep putting on shoes and you keep walking, so the pressure continues and the thicker skin forms into a corn and becomes painful.
Getting rid of corns is pretty easy and a skilled podiatrist can certainly remove them. That's the easy bit. The difficult bit is stopping them returning. It can be one thing to remove them, but unless you take away that cause (the higher pressures on the location), then they will just come back eventually. Corns don’t have roots that they can re-grow from. They keep coming back as the cause remains. Taking away a corn is much like dealing with the symptom. They are going to come back unless the cause is removed. This is where the ability of a podiatrist is necessary to identify the correct cause. A complete assessment is required of the biomechanics, shoes, foot shape and activities to sort out just what it is that is causing the higher pressure. When that cause has been identified, then different treatments can be used to reduce that pressure. This could vary from simple shoe suggestions to foot orthotic to surgery.