Foot fungus is known as weak feet in Chinese medicine and is caused by external dampness and wind toxicity, or dampness and heat infiltration (dampness and heat invading the intestines, bladder, pubic area and lower limbs). Herbs such as Difenzo, Cang Er Zi, Betel nut, and Snake Bed Seed can be used externally, boiled in water and then used to soak and wash the feet. 1. Groundnut: It can clear away heat and dampness (removing heat and dampness from the body), dispel wind and stop itching (stopping itching by removing the wind that invades the surface of the muscles). It can be used for rubella, eczema, itchy skin and so on. 2. Cang Er Zi: It can dispel wind-cold, open the nose and remove wind-dampness. It can be used to relieve itching of wind rash and constriction of dampness and paralysis. 3. Betel nut: Its effects are killing worms, eliminating stagnation, promoting circulation of Qi, inducing diuresis and stopping malaria. It can be used externally to treat edema and foot fungus with good effect. 4. Snake Bed Seed: It can dry dampness, dispel wind, kill insects and relieve itching. It is used for eczema itching, dampness paralysis and lumbago. These herbs, alone or with the decoction of water, soak the feet, can play the effect of drying dampness, killing insects, itching. It is recommended to do under the guidance of a doctor, do not take medication without authorization. If the situation is more serious, you should consult a doctor in time.