There is no such thing as a good combination of eucommia and what, but only symptomatic treatment can receive good therapeutic effect. According to different diseases, DUZHONG can be paired with different drugs, such as the treatment of lower element deficiency and cold, impotence of kidney deficiency, frequent urination, often used with ginseng, ripened dihuang, etc.; the treatment of kidney deficiency and lumbago, lumbar and knee soreness and weakness (lumbar and knee soreness and weakness of the sensation), can be paired with walnut meat, tonic bone resin, etc.. Cortex Eucommiae, sweet in flavor and warm in nature, belongs to the liver and kidney meridians. It has the effects of tonifying the liver and kidney, strengthening the muscles and bones, and tranquilizing the fetus. It is used for deficiency of liver and kidney (weakness of liver and kidney), lumbar and knee pain, weakness of muscles and bones, dizziness, leakage of blood in pregnancy, restlessness of the fetus, and high blood pressure. For treating kidney qi deficiency, lumbago and tinnitus, limb weakness, it can be used together with yanhuisuo and cumin; for treating lumbago even in the lower abdomen, not being able to bend down, etc., it can be used together with mudanpi and cinnamon. It should be noted that those with kidney deficiency and fire should not use Dudong, i.e. it should be used with cypress and Zhimu. It is recommended that patients undergo standardized treatment under the guidance of Chinese medicine practitioners.