4 the second one is that the pharmacological action of herbs should act on the pathological mechanism of the disease. Liu Wei Dihuang Wan (Pill of Rehmannia) not only accords with the pathogenesis but also aims at the pathological mech- anism. This compound prescription has broad pharmaco- logical activities, especially the action of protecting vascular endothelial cells, dilating peripheral blood vessels, decreasing peripheral vascular resistance, lowing blood pressure syner- gistically, and delaying the development and progression of arteriosclerosis. If accompanied by blurred vision, Gou Qi (Chinese Wolfberry) and Ju Hua (Chrysanthemum) should be added into the prescription, which composed Qi Ju Dihuang Wan (Pill of Chinese Wolfberry, Chrysanthemum, and Rehmannia). If accompanied by facial ﬂushing and conjunctival congestion, Tian Ma (Gastrodia elata) and Gou Teng (Uncaria) should be added into the prescription for calming liver and suppressing liver-yang hyperactivity. 5. Differentiation of Herb Syndrome As the distribution of herb syndromes of hypertension is regular, we could ﬁnd rules of formula syndromes from herb syndromes if we grasp the treatment rules of herb syndromes neatly and masterly. We found that the common herb syndromes include Tian Ma (Gastrodia elata) syndrome, Sheng Di Huang (Radix Rehmanniae) syndrome, Niu Xi (Achyranthes root) syndrome, and Chuan Xiong (Ligusticum wallichii) syndrome. Tian Ma (Gastrodia elata) can calm liver and suppress liver yang hyperactivity. The indications of Tian Ma (Gas- trodia elata) are dizziness, tinnitus, distending feeling in head, headache, facial ﬂushing and conjunctival congestion, the pathogenesis of which belongs to ﬂaming up of liver ﬁre and hyperactivity of liver yang. It is noteworthy that if dizziness and headache are more severe, the dose of Tian Ma (Gastrodia elata) must be larger to control blood pressure, and we often use 30 g, while routine dose such as 10 to 20 g has unsatisfactory results. The dose of Tian Ma (Gastrodia elata) in academician Chen Keji’s experienced prescription “Qing Xuan Jiang Ya Tang (Decoction for Eliminating Vertigo and Lowering Blood Pressure)” is 30 g, while the dose of another key herb Gou Teng (Uncaria) is 30 to 60 g [8]. Sheng Di Huang (Radix Rehmanniae) could remove pathogenic heat from blood, nourish yin, and generate body ﬂuid. In accordance with record of Shengnong Ben Cao Jing (Shennong’s Classic of Meteria Medica), it can activate blood circulation. Yoshimasu T’s “Yao Zheng (Indications of Herbs)” recorded that it can treat blood syndrome and ﬂuid retention. Therefore, the indications of Sheng Di Huang (Radix Rehmanniae) are low back pain, lassitude in loins and legs, edema, hypodynamia, dry mouth, constipation, thin and less fur. We often use it to treat liver ﬁre, intestinal ﬁre, kidney ﬁre, kidney deﬁciency, and excessive ﬂuid. The dose of Sheng Di Huang (Radix Rehmanniae) needs our attention as well as Tian Ma (Gastrodia elata). Low dosees enrich yin and nourishes kidney, while large dose could activate blood to dredge vessels. According to the author’s experience, the clinical dose is 60 to 120 g. It is not necessary to be too tense Evidence-Based Complementary and Alternative Medicine if patients present with gastrointestinal symptoms such as diarrhea and smelly stool after taking medicine, which means pathogenic ﬁre is downgoing and eliminating. According to recordation in Shengnong Ben Cao Jing (Shennong’s Classic of Meteria Medica), Niu Xi (Achyranthes root) can nourish liver and kidney, promote blood circula- tion to remove blood stasis, guide ﬁre, and ﬂuid downgoing. Therefore, dizziness, headache, facial ﬂushing, conjunctival congestion, lassitude in loins and legs, and edema due to upward attack by qi and ﬁre are the typical indications of Niu Xi (Achyranthes root). Professor Xu Wenhua, a prestigious Chinese physician of Jiangsu, is skilled in using Niu Xi (Achyranthes Root) treating pheochromocytoma, malignant abdominal tumors, and so on in clinical practice. The dose of Niu Xi (Achyranthes Root) is very large even up to 250 g sometimes. He had taken herbal decoction with Niu Xi (Achyranthes Root) of 200 g, and no serious side eﬀect was found during the course of the treatment. Motivated by this, Professor Huang Huang often use large dose of Niu Xi (Achyranthes Root) to treat lower limb dropsy due to hemocirculatory disorder, cirrhosis ascites, hypertension patients with obesity, and so on. We often use it to treat liver ﬁre, kidney deﬁciency, and ﬂuid retention disease. Signiﬁcant curative eﬀect can occur when the dose is above 60 g, and simultaneous use of both Chuan Niu Xi (Achyranthes bidentata) and Huai Niu Xi (Achyranthes bidentata Blume) could improve the curative eﬀect. Chuan Xiong (Ligusticum wallichii) could promote qi and activate blood circulation to relieve pain. According to recordation in Shengnong Ben Cao Jing (Shennong’s Classic of Meteria Medica), it can treat headache. Famous Chinese physician Li Dongyuan also said that Chuan Xiong (Ligusticum wallichii) must be used in treating headache. Therefore, the classical indication of Chuan Xiong (Ligus- ticum wallichii) is headache. Severe headache always suggests qi stagnation, blood stasis, and meridians and collaterals impassable. The dose of Chuan Xiong (Ligusticum wallichii) also deserves attention greatly. We had treated one case of intractable migraine patients with Xue Fu Zhu Yu Tang (Decoction for Removing Blood Stasis), in which the dose of Chuan Xiong (Ligusticum wallichii) is 10 g. However, after taking 10 doses, the pain was not alleviated satisfactorily. It is found that routine dose such as 10 to 20 g cannot get satisfactory eﬀect when headache is severe through many experiments afterwards. However, headache were relieved rapidly when the dosages was increased up to 30 g. 6. Summary Chinese medicine has been used for over 2500 years and has historically established itself as a system of a holistic medical care in China [9]. What is more, Chinese medicine and integrative medicine health provision in conventional medical clinic and hospital settings has emerged worldwide [10–13]. Seeing the body as a whole, not as separated systems, regarding human beings as more than just their physical bodies, practicing with emphasis on prevention, holoregulation, and comprehensive intervention, are all very strong principles of Chinese medicine, which works