To remove corns, you can use corns cream, or you can remove them by physical methods or surgery. 1. corns cream: the full name of corns cream is salicylic acid phenol paste, the main ingredients in it are salicylic acid and phenol, which is a topical corrosive drug. Smaller corns can be disinfected, soaked and softened by applying corns cream externally to make them fall off. 2. Physical methods: laser treatment, liquid nitrogen cryotherapy and other methods, which may require multiple treatments to get rid of the corns. 3. Surgery: If the corns have been formed for a long time, the roots are deeper, the individual corns are bigger, and the treatment is ineffective through other conventional methods, the corns can also be completely removed through surgery. If the foot deformity or disease causes corns to appear on the feet, you should also go to the hospital for relevant examination and treatment for foot deformity. If you have corns, it is recommended to go to the hospital in time and use medication as prescribed by the doctor.