Corns are best prevented by stopping calluses from forming in the first place. This means that moisturizers can help calls from getting worse. This keeps them from turning into painful corns if you ever by a lot of heavy lifting around the hospital. Another way of preventing corns is to stop doing stuff that causes calluses. By this, we don't mean that you should stop working. Calluses form by applying pressure on the skin. But with the right safety equipment, there's little chance that your calluses would turn into corns any time soon.