Tinea pedis is a skin disease caused by pathogenic dermatophytes on the feet, which is equivalent to “foot dampness” or “smelly snail” as it is called in Chinese medical literature, and is named after the special odor caused by the rotting and flowing of the feet. It occurs most frequently in adults, especially those who wear rubber shoes, sneakers and plastic shoes, and is aggravated in summer and autumn. The onset of the disease is associated with close contact with infectious agents, such as common wooden tubs and slippers. The most common types of tinea pedis are as follows: 1. Hyperkeratosis: The main manifestation is hyperkeratosis of the skin, which is rough and sweatless. The lesions are most often located on the heel, plantar and parapet of the foot; 2. Papulosquamous type: there are obvious small flakes of desquamation on the plantar side of the foot, in the form of arcs or rings attached to the edges of the lesions, and erythema and papules may occur on the basis of thickening of the lesions, and this type is the most common; 3. Blistering type: it is often located on the toes and edges of the foot, with small blisters in clusters or distribution, and itching is obvious. Sometimes the damage expands and spreads and can fuse into large blisters. This type is more common on hot days; 4, inter-toe erosion type: generally good for invasion between the third and fourth toes, moist impregnation erosion, accompanied by sweating, itchy unbearable. This type can often occur due to bacterial secondary infection and bad odor, which is aggravated in the summer and reduced in the winter, or can remain untreated all year round; 5. Tinea corporis: It can have the above-mentioned types, especially papulosquamous type and blister type, and develop on the back of the foot, which is actually a foot ringworm and tinea corporis at the same time, accompanied by severe itching, and is especially common in the summer. So how can we prevent it in our daily life? 1. Keep your feet clean and dry, and don’t scratch them with your hands. 2. Don’t wear rubber shoes in summer, and wear more cloth shoes or sandals. 3. Use separate footbaths, foot cloths, slippers and other utensils. 4. Wash shoes and socks worn by people with ringworm separately from other clothes, and preferably scald them with boiling water or expose them to the sun.