Salt has the effect of anti-inflammatory and sterilization, softening keratin, etc. Soaking feet in salt water can promote blood circulation in the body and relieve fatigue. The salt content of the foot soaking water should not be too high, and those whose skin is allergic to salt are forbidden to soak their feet in salt water. Those who suffer from diseases are recommended to complete under the guidance of a doctor. 1. Salt has an anti-inflammatory and antiseptic effect, soaking feet in salt water can prevent smelly feet and foot skin fungal infections. 2. Salt can soften keratin, promote metabolism and relieve fatigue. However, it should be noted that salt water has a relatively large irritation to the wound, the foot has a broken wound, it is not suitable to use salt water foot soak. Once found, due to long-term salt water foot soak appear infection and other symptoms, need to immediately seek medical treatment, under the guidance of the doctor.