The pathogenesis is due to the invasion of the toe by Fresh Fungus epidermidis, Trichophyton rubrum or Trichophyton pedis. Red Trichophyton resistance, not easy to control, and Wei Qi and fluid Bojie. Gathering but not dispersed, resulting in dry and moist skin caused. Tinea pedis is cited thick cuticle, sebum lack, sweat glands, sweat more, foot moist, conducive to mold growth and reproduction and start, use of public bath, public slippers, foot basin, towel is also easy to mutual infection. How to prevent tinea pedis? The prevention of tinea pedis is very crucial. Eliminating the environment where fungus grows, especially in the warm and humid season, can effectively prevent ringworm. 1, hold feet clean and dry: shower with soap will feet clean and dry. During the daytime work wear easy to absorb sweat cotton or cotton and wool blended socks, try to wear ventilated and breathable shoes. Wash your feet and shoes and socks regularly to keep them dry and ventilated. 2, the source of infection: during the period of illness, cotton socks should be boiled in hot water for 15 minutes before cleaning, insoles should be changed, don’t scratch the skin of the affected area, and wash your hands after contacting to avoid infecting your hands or other parts of your body. 3, to prevent cross-infection: do not share shoes, socks and slippers, bath towels, basins, footbaths, etc.; bathroom floor to keep clean, do not use public slippers. How to treat? 1.Itraconazole hydrochloride capsules or terbinafine tablets can be taken internally, two tablets per night with meals. 2, external use of terbinafine hydrochloride tincture, lead acetate, compound benzoic acid liquid, salicylic acid ointment, Liangqi, Huanli, etc., traditional Chinese medicine, de-toxin two, tinea cruris lotion and other soaking .