If a child has corns on his feet, it is mainly because the skin of the feet has been extruded and rubbed for a long time, which has gradually formed conical keratinous growths, which can be intervened by general treatment, medication, surgical treatment and physical therapy. 1. General treatment: first of all, the causative factors should be removed, for example, if the corns are caused by wearing ill-fitting shoes for a long period of time, the bad habit of wearing shoes can be corrected in time, and some comfortable and suitable shoes can be chosen. 2. Drug treatment: patients can follow the doctor’s instructions to apply corns cream, 40% urea cream and other drugs for treatment. After using the medication, there are rashes, itching and other adverse reactions, you should wash the medication in time, and seek medical treatment. 3. Surgical treatment: For patients with serious conditions, surgical treatment can also be taken as appropriate. 4. Physical therapy: such as laser therapy, cryotherapy, etc., can be used in conjunction with the above ways of treatment, can play a better therapeutic effect. Children with corns must go to the nearest skin hospital and follow the doctor’s instructions for treatment.