Tinea manus and pedis is a very common type of dermatophytosis in clinical practice, mainly caused by pathogenic fungal infections. Patients with tinea manus and pedis need to be mindful of their diet and avoid certain foods. Firstly, they should not consume spicy and irritating foods, as well as "heating" foods, such as garlic, green onions, ginger, chili peppers, black pepper, seafood, etc. Additionally, they should try to avoid beverages and processed foods, and not eat overly sweet foods. Lastly, they should avoid fried and excessively greasy foods, such as deep-fried dough sticks and fatty meats, etc.