基于“卫出下焦”探析麻黄附子细辛汤治疗 少阴久汗

An Exploration of Mahuang Fuzi Xixin Decoction in Treating Chronic Sweating in Shaoyin Syndrome Based on the Theory That “Defensive Qi Originates from the Lower Jiao”

摘要: 汗证是一种以汗出异常增多为主症的疾病。少阴久汗之人病机当责之于肾阳亏虚、卫失所固。因此本文基于“卫出下焦”理论，探讨下焦阳虚与少阴久汗之间的关系，并分析麻黄附子细辛汤是如何以卫气为眼，以温补下焦、通卫达表为法止汗，并附验案一则展现疗效。

Abstract: Sweating disorder is a condition primarily characterized by abnormal excessive sweating. The pathogenesis of prolonged sweating in the Shaoyin stage should be attributed to kidney yang deficiency and the failure of defensive Qi to hold and consolidate. Based on the theory that “Defensive Qi originates from the Lower Jiao”, this article explores the relationship between yang deficiency in the lower Jiao and prolonged sweating in the Shaoyin stage. It analyzes how Mahuang Fuzi Xixin Decoction stops sweating by focusing on defensive Qi, employing the method of warming and tonifying the lower Jiao while promoting defensive Qi to the surface, with a clinical case presented to demonstrate its efficacy.