How can i treat corns?

Depends: If not causing pain, you don't have to. If you choose to, there are over the counter corn removers that use acid, there are pumice stones too. If necessary , your physician can shave it/pare it down. Wear shoes that fit w/o rubbing. If you are diabetic seek advice from your physician prior to self treatment.

You can try : Filing with an emory board then protecting with a silicone toe sleeve. Podiatrists can offer more permenant solutions.