Foot corns are caused by squeezing, friction and other physical reasons, because the corns grow on the foot, every day to walk, so the corns treatment process will be more painful, as follows: 1, cryotherapy: so that the corns eye skin necrosis, peeling, thinning; 2, physical therapy: use a knife or pedicure knife to pluck out the corns core, not to stimulate the skin, and will not be so painful, so some corns find some pedicure master treatment also 3, topical medicine: pharmacies sell corns, paste so that corns toe soft after taking a knife to scrape off, and then paste again repeatedly, corns will become smaller and smaller. All of the above methods can treat corns, but need to be treated under the guidance of a doctor.