I frequently get corns on the soles of my feet.
At first I thought that one pair of shoes were responsible for it, but even after I have changed them they still keep coming back. they are mildly painful and more ogf an irritant.
The only thing that works are corn pads.

    

Corns are very irritating and cause you mild pain.This can be removed by applying suitable oil or you may also apply prescribed cream.Sometimes the footwear are also responsible for these corns.Try these few methods to be free from corns.

Why not try going to a skin specialist?
It's worth the visit in order to get rid of the discomfort of having them, or the headache of having to put in a 'corn pad' every so often..

From what I have read about corns they are caused by irritation to the skin which is usually due to poorly fitting footware. One thing to try is going to a proper shoe store where they actually measure and fit you with a shoe. You could also try going to a foot doctor/speciallist who can help define what the cause is and help with finding a remedy. I agree with the previous poster that going to the doctor is a good idea and worth the cost especially if this is persistant and not going away.

Try to apply ointment on the infected areas after washing your feet clean and drying it with clean towel. Sometimes it has something to do with the weather and the water.