Warts are caused by a virus, so giving him antibiotics such as Cepime O 200 mg (Cefpodoxime) will not work. Treatment usually involves topical medications containing salicylic acid, cryotherapy (freezing), or minor procedures performed by a doctor. Keep his feet clean and dry, and avoid sharing socks or shoes to prevent the warts from spreading. Please see a dermatologist for the most effective treatment.