After the external stimulus is lifted, mild corns have the possibility of falling off on their own, but if the external stimulus persists or if the corns are severe, they usually do not fall off on their own. Corns generally refer to local skin thickening of the stratum corneum under long-term pressure and friction, mostly involving prominent stress areas, such as the outer side of the little toe or the inner edge of the toes, but also can be seen on the back of the toes and the heel. Because of the tip of the corns compression of peripheral nerves in the dermis, conscious pain when standing or walking under pressure. Mild corns may fall off on their own when localized pressure and friction factors are relieved. However, when wearing inappropriate shoes for a long time or rubbing and squeezing the corns for a long time, the symptoms of corns will be aggravated easily and will not get better or fall off by themselves. At this time, you need to use medication for treatment, you can apply topical corns cream, 50% salicylic acid ointment and so on, in order to soften the thickened stratum corneum, and promote corns to fall off and heal. Care should be taken to protect the surrounding normal skin when applying medication. In addition to topical medication, you can also try to use freezing, laser and other methods of physical removal of corns. Avoid rubbing and squeezing the area for a long time and wear loose and breathable shoes and socks. If you have corns, it is recommended that you go to the hospital for treatment, and medication should be used according to the doctor’s instructions.