Salt water foot soaking is generally not harmful, on the contrary, it can accelerate blood circulation. However, if the patient has a wound on the foot, it may cause irritation to the wound, thus aggravating the condition. The use of salt water foot soak generally does not cause harm to the body, on the contrary, the foot soak itself can also accelerate the body’s blood circulation, thereby promoting the discharge of metabolic products. However, if the patient’s feet have wounds, the use of salt water foot soak, but also may cause the wound infection, and even stimulate the wound to appear severe pain, thus aggravating the patient’s condition. Salt water foot soak for some people is a certain benefit, but some patients suffering from diseases in the foot soak before, should consult a professional to avoid harm to the body.