Athlete's foot is a disease caused by fungal infection, and it is not related to the lack of vitamins or trace elements. Once infected with athlete's foot, it must be treated formally. Generally, the use of antifungal creams, such as naftifine and ketoconazole ointment applied continuously, can cure it. The duration of medication must be long, at least more than one month, or until symptoms completely disappear, and then continue using it for about half a month afterwards, which can basically achieve the purpose of eradication. However, this disease is highly contagious. Shoes and socks that have been worn must be sun-dried and disinfected. Foot towels and foot basins should be used separately from family members to avoid infecting them. Therefore, once athlete's foot occurs, it must be treated promptly. Avoid going to public baths and wearing shared slippers to prevent re-infection. (Under the guidance of a doctor when using medication)