We usually say that corns are a kind of skin disease. Some people grow on their hands, while others grow on their feet. But pay attention to soak your feet with warm water before using corn paste, soften your skin a little first and remove the dead skin. Then apply corn medicine and paste corn paste, and keep your feet dry during the paste. Cornus officinalis is caused by long-term friction fungal infection. Now corns are often used for treatment. Soak your feet with hot water to remove dead skin before sticking, which is beneficial to the absorption of drugs after sticking corns, and then stick corns. Don't remove the white circle of corn paste, and stick a layer of medical tape to prevent the corn paste from grinding off. Just change it every two days.