氣溫味甘,,氣味俱輕,,陽也。亦有微陰,,故溫中微寒,,甘中微苦,入手太陰而能瀉心火也,。還須配茯神佐棗仁為良,。治脾肺,,壯元陽,補而緩中,,氣短氣促氣少者俱用,,更瀉脾肺胃中火邪。氣不足而亡血者,,須參補之,。里虛而腹痛者,亦參補之,。且通經(jīng)活血,,乃氣中之血藥也,生脈散中用之,,正以經(jīng)通血活,,則脈生矣。古人用之于解散藥及發(fā)表藥者,,取其通經(jīng)走表也,。又曰,肺寒方可服者,,何也,?蓋肺惟寒則脈濡滯而行遲,假參之力而通經(jīng)活血,,則元氣遂生發(fā)矣,。肺熱又傷肺者,何也,?蓋肺惟熱則氣血激行,,再加通迅,則助激速,,而肺氣遂耗散矣,。與蜜炙黃 同用,則助其補表,。與土炒白術(shù)同用,則助其補中,。用升麻為使,,而佐以柴胡,則能引之上升而補上,。用熟地為使,,而佐以白茯,則能引之補脾胃,,及腎中之虛寒,。多用麥冬,,大能止渴生津。加以山楂,,極會去滯消積,。手經(jīng)有疾,桂枝為使,。足經(jīng)有疾,,附子為使。大哉參之功乎,,其補中益氣之要藥乎,,其和中溫元之圣德乎。氣藥用之以補氣固矣,,然血藥用之,,亦能補血者,何也,?蓋血附氣而行,,氣行則血行,此其理也,,茍不少加參以引導(dǎo)之,,則血且滯矣,雖有諸補血之藥,,竟何用哉,。況血、陰也,,氣,、陽也,獨陰不成,,必借陽氣一噓,,而后陰賴之以受成,此陽昌陰和之妙用,,顧學(xué)人自悟何如耳,。經(jīng)曰,一陰一陽之謂道,,旨哉斯言也,。痘家灰白虛寒之癥,酌宜重用,,若紅紫實熱者,,乃肺熱痰盛,不可輕犯,。反藜蘆,,畏靈脂,。 |
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