Jock itch is caused by a fungal infection. The fungus attaches to the skin surface at the root of the thighs, and some fungi can go deeper, so the treatment period is generally longer. Commonly used antifungal creams must be applied for a long treatment period, at least one month or even more than two months, to completely cure the condition. This disease can be entirely eradicated, but it does have a certain recurrence rate. For example, recurrences can occur if after healing, one often goes to public baths or swimming pools, or if one has athlete's foot, washes socks and underwear together, has pets at home, lives in damp and hot conditions, or bathes infrequently. Therefore, standardizing one's dietary and living habits, maintaining hygiene, and bathing more frequently can help prevent recurrence.