Literature and clinical studies have shown that“deficiency in nature and excess in superficiality”is the main pathogenesis of primary hypertension.The root cause of the disease is yin-deficiency of Liver and Kidney as the basis;the superficiality is the hyperactivity of Liver-yang and blood stasis obstructing collaterals.Therefore,the combination treatment for deficiency,blood stasis,and internal wind should be applied.The therapy of nourishing yin and soothing Liver,removing blood stasis and dredging collaterals has achieved a significant ef...