An individual can quickly remove a corn on his foot by applying salicylic acid to the corn and rubbing off the growth with a pumice stone, according to WebMD. Soaking the corn in warm water also helps to soften the skin before rubbing dead skin away with a pumice stone.
An in-office procedure that quickly removes corns involves having a medical professional pare or trim the corn using a small knife, explains WebMD. Patients should not attempt to cut a corn at home as a quick overnight fix. Rubbing the corn too hard or cutting the skin can cause injury, numbness or circulatory problems in the feet.