The formation of corns is due to long-term pressure and friction on the soles of the feet or toes, such as wearing inappropriate shoes and a lot of sports, resulting in excessive thickening of the local skin to form conical corns, with the tip deep inside the skin and the base exposed outside. It is often found in people who often walk or stand for a long time, and is often related to occupation. There is a difference between hard and soft corns. Hard corns are found on the soles of the feet and on the lateral side of the little toes, on the back of the toes and other bony prominences or places prone to pressure and friction, round or oval. The surface is flat, hard and yellowish, and its tip can reach the papillary layer of the skin. When standing or walking, it often causes severe pain due to pressure on the sensory nerve endings of the papillary layer, which makes walking difficult. Soft corns mostly occur in the adjacent area between the two toes of a toe, due to the wet and softened, thus turning grayish white, and has a bad smell. When the initial stage of corns, only the local hard skin growth to, at this time if early treatment, can avoid the generation of subcutaneous hard lumps, of course, the first is to change the pair of shoes that make you uncomfortable to wear, the second is to use every night when the bath will be soaked in warm water for about ten minutes, and then use the pumice stone to grind away the part of the thick callus, and then use the pumice stone should also be careful not to use too much force to cause skin damage, grinding away after the foot can be After the abrasion, you can put some lotion on the foot to soften the local skin. If the thickened callus area is deeper than the pumice stone to do the surface treatment, but will not be painful enough to affect walking. At this time, you can apply a variety of strong keratin exfoliators, such as commercially available corns, 15% lactic acid levulinic acid ointment. 0.3% retinoic acid ointment, 10% silver nitrate solution, etc., repeated every few days until the tip of the digging out. However, these usually have an acidic melting keratinizing effect, so special care should be taken in their use, and it is best to use them under medical supervision to avoid inappropriate skin burns and ulcers. If the corns have penetrated deep into the skin, when pressed, you can find the hard lump that has been formed, and at this time there is already pain when walking, then you can no longer delay, you must rely on surgical removal, this small surgery as long as local anesthesia, the corns can be dug out from the root. About a week can be demobilized, do not use scissors to cut the epidermis, which will not only form a wound will also cause infection, and for corns or no way to eradicate, especially for diabetic patients who already have peripheral blood circulation problems, a wound on the foot improperly handled, may cause the consequences of amputation. In addition, there is a recipe to try, grubs (the larvae of the golden tortoise, in different areas called ground worms, earthworms, walnut worms, etc.) can cure corns. First pick the old white skin, break the grubs and put them on the affected area with adhesive tape. It can be used as a reference for patients. To prevent the occurrence of corns, you should wear suitable and soft boots and shoes, or protect the local area from pressure with a small piece of sponge pad with holes. In addition, you should change your shoes often. If you wear shoes that fit your feet again for a long time, a part of your feet will form corns as a result.