Tinea cruris is a disease caused by fungal infection, characterized by high contagiosity and recurrence. Generally, it is relatively simple to completely cure this disease using antifungal creams applied continuously for one to two months. In some cases, inappropriate treatment methods or re-infection after recovery are the main factors for its recurrence. The treatment period must be long, and after recovery, one should avoid soaking in public baths and swimming. It’s also advised not to wear slippers indiscriminately to prevent athlete's foot. If infected with athlete's foot, socks and underwear should be washed separately. It is recommended not to keep small animals, to bathe frequently, and not to share towels and bath scrubs.