Foot nail, also known as corns, mainly due to friction or prolonged extrusion caused by the disease, mainly using the following methods of treatment: a, external use of corns paste, with corns paste on the local corns, 24 hours later, gently digging out the corns with a knife; two, laser treatment, local anesthesia, carbon dioxide laser burn to remove the corns; three, with liquid nitrogen freezing treatment; four, with umeboshi grinded and put on the local, once a day, continuous Use for a week. For the treatment of foot nail many methods, after treatment and healing, must reduce the local friction and extrusion.