Children with corns on the feet are recommended to reduce local irritation, give topical medication, cryotherapy or surgery to improve symptoms. 1. Reduce local stimulation: the occurrence of corns is related to long-term local extrusion and friction, it is recommended to replace loose and breathable shoes to reduce foot extrusion, friction, etc., and keep the local clean and dry to avoid infection. 2. Topical medication: you can locally apply corrosive corrosive cream to soften the thickened skin at the corns, but you need to pay attention to the protection of the surrounding normal skin when using medication. 3. Freezing treatment: use a cotton swab dipped in liquid nitrogen and apply it to the corns, pay attention to local disinfection after the operation to prevent secondary infection. 4. Surgery: if the corns are large and the above treatments are not effective, they should be removed by surgery, and the local medicine should be changed after the surgery. In addition, children with corns need to go to the hand and foot surgery department to check whether there are foot deformities and other conditions, if necessary, surgery to correct the deformity. Parents are advised to bring their children with corns to regular hospitals in a timely manner, under the guidance of doctors to standardize the treatment, and at the same time, pay attention to foot care in daily life, to avoid local infections.