Based on

Huangdi Neijing

(

Yellow Emperor's Internal Classic

)

combined with the

Huangdi Mingtang Jing JiJiao

(

Compilation and Correction of Yellow Emperor's Mingtang Classic

) and unearthed

Tianhui Yijian

(

Tianhui Medical Bamboo Slips

)

it is recognized that the therapeutic indications of Fenglong (ST 40) were recorded repeatedly in many medical works of the Qin and Han dynasties; and the treatments mostly focus on "upward reversion of

qi

". In

Huangdi Mingtang Jing

(

Yellow Emperor's Mingtang Classic

)

a part of symptoms were re-described textually

which affects the understanding on the indications of Fenglong (ST 40) in the medical works of the later generations. On the basis of the construction of phlegm theory in the Sui and Tang dynasties

the scholars of Song

Jin and Yuan dynasties had placed the emphasis on the relationship between phlegm and

qi

movement. In acupuncture works by

Dou Hanqing

Fenglong (ST 40) was selected in treatment of phlegm dampness and phlegm-induced asthma

which is also based on the pathogenesis

"upward reversion of

qi

"

rather than "phlegm" itself. This view can be understood by the proof of "reducing Zusanli (ST 36) for eliminating wind". The relationship between Fenglong (ST 40) and phlegm was emphasized in

Yulong Ge

(

Jade Dragon Verse

) and

Zhenfang Liuji

(

Six Sets of Acupuncture Methods

)

after which

the understanding

" Fenglong (ST 40)

the key point for phlegm disorders"

had been formed gradually since the Ming dynasty. The formation and evolution of the therapeutic indications of Fenglong (ST 40) are influenced comprehensively by the errors in textual duplication

cultural background

changes in the term expressions of disorders

and the clinical experience of medical practitioners.