Tinea pedis and tinea pedis are two completely different diseases in terms of cause, symptoms and prevention. It is common to refer to tinea pedis as athlete’s foot, and it is also common to refer to medications used to treat tinea pedis in the market as athlete’s foot water, athlete’s foot spirit, etc. This is false. Vitamin B1, also known as thiamine, is water-soluble and is present in many foods, with yeast containing the most, and is also abundant in beans, wheat, and meat, and thiamine in rice and wheat foods is mostly stored in the ectoderm. The cause of the foot disease is the loss of thiamine in the slop when washing or steaming food, or the low intake due to alcoholism, various gastrointestinal diseases, or chronic diarrhea, absorption disorders caused by intestinal tuberculosis, etc. The pathogenesis of beriberi is not yet fully understood. 1, the clinical typology of beriberi (1) dry type of beriberi: dry type with peripheral neuritis, patients appear numbness of the hands and feet, weakness of the limbs and other symptoms. (2) wet type foot: edema and purple fluid exudation mainly wet type. Patients mainly have dampness and erosion between the toes or the bottom of the feet, itching, or immersion and flow of yellow water, or redness, ulceration and molting, or even swelling of the toes, red tongue, yellow coating, sunken pulse or no change. The treatment should be to clear heat and dry dampness, warming and relieving itching. (3) mixed foot odor: a mixture of the above two types of performance at the same time. 2, the prevention and treatment of foot disease eat more thiamin-rich food pay attention to the rice and cooking methods. Treatment of this disease is generally oral vitamin B1 tablets 10-20 mg, 3 times a day. For fulminant cases, vitamin B1 50~100 mg should be given immediately intramuscularly 3 times a day. Tinea pedis typing and prevention Tinea pedis is mainly caused by the flocculent epidermophytes, Trichophyton rubrum, and gypsum-like fungi of the cutaneous filamentous fungi (dermatophytes); Candida albicans can also cause it. (1) Tinea pedis clinical subtype (1) sweat sore type: the foot, especially the sole of the water sores, or gather in groups or fusion into a large sore, sore wall is thick and not easy to break, after the water sore absorption and dry flaking, self-conscious itching and swelling pain. (2) Interdigital erosion type: This type is the most common, the interdigital erosion is white due to sweat impregnation, often itching and scratching, after breaking to reveal the red surface, often secondary to infection and cause lymphangitis, dermatitis or cellulitis. (3) Scaly keratosis type: There are thick scales on the bottom of the foot, and even all the skin keratin layer on the bottom of the foot is thickened, and there can be deep fissures on the heel of the foot, causing pain and even affecting labor and walking. 2, prevention and treatment of ringworm advocate shower, do not share bath towels and slippers. Keep your feet clean and dry, and put on sweat powder if your feet sweat too much. Change your shoes and socks often, wear sandals on hot days, wear less rubber shoes, and don’t rub your feet or pick your feet. For tinea pedis with oozing fluid or secondary infection, use 3% boric acid solution. or 0.1 % Fresnil solution to clean or wet compress. Our dermatology department applies homemade compound lotion No. 1, dermatitis lotion, and red sea stone lotion with other drugs for external use, which is effective. For severe cases of tinea pedis or combined nail fungus, some specified drugs can be taken internally as appropriate.