Povidone-iodine is not recommended for the treatment of some foot diseases, but can be used to wipe the affected area with cotton swabs, or combined with other medications. Povidone Iodine is mainly composed of iodine and polyvinylpyrrolidone, and its main function is to disinfect the local skin in daily life or before clinical treatment, which can kill some of the bacteria, fungi, viruses and so on. Povidone iodine is mainly used for the treatment of fungal diseases of the feet, such as athlete’s foot or tinea pedis, but it is not recommended to use large amounts of povidone iodine to soak the feet, in addition to the waste of skin irritation caused by povidone iodine, the effect is not very different from that of topical wiping, but also combined with the use of topical medications, such as ointment of compound benzoic acid, and so on. The use of povidone-iodine for treatment, to seek medical advice in a timely manner, in advance of consulting the doctor for appropriate treatment methods and medications.