Athlete's foot is a disease caused by fungal infections, and it is not related to a lack of vitamins or trace elements. Once it occurs, it is highly contagious and recurrent. Contact with others or wearing each other's slippers can lead to cross-infection. Once it appears, it is advisable to apply antifungal cream as early as possible. The treatment should be prolonged, lasting at least one month, or even more than two months, to potentially kill the deep-rooted fungus completely and prevent recurrence. During the treatment of athlete's foot, it is also important to regulate one's diet and lifestyle habits. Avoid public baths and swimming, try not to keep small animals at home, do not wear others' slippers, avoid spicy and stimulating foods, and do not stay up late.