Athlete's foot is caused by a fungal infection, and while the cause of the disease is clear, the specific process of infection is complex. Casual habits such as wearing flip-flops recklessly, sharing foot basins at home with others who have athlete’s foot, soaking in public baths, swimming, or having pets at home, as pets often harbor fungi, can all potentially lead to the disease. Once the disease occurs, it is imperative to treat it early. Long-term use of antifungal creams, applied for at least one to two months continuously, is necessary to completely kill the deep-seated fungi and prevent recurrence of the condition. After recovery, it is also important to maintain proper dietary and lifestyle habits, avoid wearing flip-flops recklessly, and stay away from public baths and swimming pools.