To summarize LI Qiangou's clinical experience in treating laryngopharyngeal reflux disease （LPRD） based on the theory of "

yang

transforming

qi

while

yin

constituting form". It is believed that "insufficiency of

yang

transforming

qi

and excess of

yin

constituting form" is the key mechanism of LPRD， in which

yang

deficiency of the lungs， spleen and kidneys is an important factor causing "insufficiency of

yang

transforming

qi"

， while phlegm， dampness and other tangible

yin

turbidities are the pathological products of "excess of

yin

constituting form". The key treatment principle is to reinforce

yang qi

and dispel

yin

turbidity. Starting from regulating the

qi

transformation of the

sanjiao

， the treatment is based on the different pathologies of lung

yang

insufficiency and phlegm congestion in the upper

jiao

， spleen

yang

failing to ascend and dampness accumulation in the middle

jiao

， and kidney

yang

deficiency and phlegm-fluid retention in the lower

jiao

， prescribed by modified

Suzi Jiangqi Decoction

（苏子降气汤），

Shengyang Chushi Decoction

（升阳除湿汤）， and

Jingui Shenqi Pill

（金匮肾气丸）， the prescriptions could also combine with

Banxia Houpo Decoction

（半夏厚朴汤） to dissolve phlegm and relieve pharyngeal pains， and regulate

qi

to direct counterflow downward.