Iodine foot soak may have a certain therapeutic effect on foot odor, but it is not recommended to use this method, especially for patients accompanied by skin breakout vesicles or blisters, which will produce strong irritation to the skin. Foot fungus is a superficial skin fungal dermatosis of the foot caused by fungal infections such as Trichophyton rubrum and Trichophyton rubrum redum, manifesting as blisters and flaking of the skin on the lateral edges of the foot, the metatarsal, the heel of the foot, and the skin between the toes, with or without itching, and oozing, vesiculation and secondary bacterial infections if the condition is serious. Iodine has a strong inhibitory effect on fungi and kills pathogens, so it may have a certain therapeutic effect on foot fungus, but at the same time, iodine is too stimulating for foot fungus blisters, skin ulcers and other lesions, which will lead to aggravation of the symptoms, so the use of iodine soak feet is not recommended. For fungal skin diseases, it is recommended to use terbinafine cream and other applications, and in severe cases, oral terbinafine, itraconazole and other antifungal drugs should be taken, and it is recommended that patients go to a regular hospital as soon as possible, under the guidance of the doctor to standardize the use of medication.