1, Chinese medicine residue can be used to soak feet. Although most of the effective components of Chinese medicine residue have been absorbed orally, Chinese medicine residue contains a small amount of effective components, which can be promoted by soaking feet.

2. The effective components of traditional Chinese medicine penetrate into the skin with the help of hot water, are absorbed by the capillaries of the feet, and enter the blood circulation of the human body, so as to achieve the purposes of strengthening physique, conditioning the body and treating diseases.

3, foot bath time should not be too long, about 20 minutes, foot bath water temperature should not be too hot, especially for diabetic patients. Because diabetic patients are often accompanied by nerve damage, the skin is insensitive to water temperature and easy to burn. Some women with dysmenorrhea can also consider soaking their feet with Chinese medicine residue to further alleviate the symptoms of dysmenorrhea.