The child has foot odor indicates the infection of fungus, need to use the drug external coating or internal, usually pay attention to foot hygiene, avoid sharing items with others, so as to avoid cross-infection. 1. topical application of drugs: fungal infection of the foot will appear itching, blisters, peeling and other symptoms, usually need to use topical medication applied locally, such as the use of ketoconazole ointment, terbinafine hydrochloride cream, etc.. 2. Oral medication: If the itching is severe, you can take itraconazole capsules, terbinafine hydrochloride tablets and other drugs, which can inhibit or kill the fungus. 3. Pay attention to hygiene: usually should pay attention to keep feet clean and dry, change shoes and socks, choose breathable socks and shoes, do not use other people’s slippers, foot wipes and so on. It is recommended to take the child to the dermatology examination, after a clear diagnosis, follow the doctor’s instructions to use medication, do not blindly use their own antifungal and other drugs, so as not to aggravate the symptoms.