To treat diarrhea caused by kidney deficiency, Chinese medicines such as Si Shen Wan and Yu Gui Drink can be used. Si Shen Wan is mainly composed of several Chinese medicines, including tonic bone resin, schizandra, Wu Zhu Zi, and nutmeg, which have the effects of warming the kidney and warming the spleen (warming the kidney yang and the spleen and stomach), and astringing the intestines to stop diarrhea (relieving diarrhea by enhancing the astringent function of the intestines). It can be used to treat diarrhea caused by deficiency and coldness of the spleen and kidneys, such as diarrhea at five o’clock (diarrhea before dawn), undigested grain (more undigested food in the stool), fatigue (mental exhaustion and physical weakness), abdominal pain, and other conditions. Right Angelica Drink is mainly composed of Radix Rehmanniae Praeparata, Rhizoma Dioscoreae, Rhizoma Dioscoreae, Poria, Fructus Lycii, Cornu Cervi Pantotrichum, and Radix Glycyrrhizae Praeparata, and has the effect of warming and tonifying Kidney-Yang (warming and replenishing Kidney-Yang) to treat the symptoms of insufficient Kidney-Yang (lack of Kidney-Yang) such as coldness of lumbar and knee pains, chills and coldness of the limbs (fear of coldness, coldness of the limbs), diarrhea, and fatigue. If you have any of the above related symptoms, it is recommended that you seek medical advice in time and standardize your treatment, do not self-medicate.