Tinea corporis and tinea cruris are both fungal infectious skin diseases, primarily caused by dermatophyte infections such as Trichophyton rubrum. After contracting these conditions, it is necessary to avoid certain foods. Spicy and stimulating foods should not be consumed, and fish, shrimp, crab, as well as smoking and drinking alcohol, should be avoided. Consuming the aforementioned foods may aggravate itching and worsen the dermatophytic conditions. It is crucial to maintain cleanliness and consume a diet rich in vitamins, such as vegetables and fruits.