Chronic laryngitis is a kind of chronic inflammation of larynx characterized primarily by hoarseness. Its main pathological mechanisms involve insufficiency of

yang

for transforming

qi

and the internal production of phlegm-damp

or inadequacy of

yin

for constituting forms and

yin

deficiency of lung and kidney. Th

e team applies wrist-ankle acupuncture under the guidance of the theory

"

yang

transforms

qi

yin

constitutes forms". The key operational principle of acupuncture is to stimulate the sites pertaining to

yang

when

yang

is deficient

while stimulate the sites pertaining to

yin

when

yin

is insufficient. The needles are inserted along the running direction of meridians that are distributed through the wrist joints. The therapeutic effect is determined by the changes of pulse conditions. When the needling technique of "

yang

transforms

qi

" is adopted

Yanglao (SI6) and Jiexi (ST41) on the left are selected; and when the needling technique of "

yin

constitutes form" is employed

Tongli (HT5) and Taixi (KI3) on the right are used commonly. The two needling techniques of wrist-ankle acupuncture are combined in treatment to ensure the satisfactory therapeutic effect on chronic laryngitis.