Through the study on 35 most commonly used insufflation remedies from 14 monographs on laryngology in the Qing Dynasty

the frequency of application of the agents are

in order of decrease

borneal

borax

indigo

Sedimentation from human urine

alum

catechu

mirabilite

realgar

musk

peppermint

coptis root

phellodendron bark

niter

glycyrrhiza. Among them

pungent drugs amount to 42.9%; cold drugs

54.3%. For channel tropism

40% belongs to the Lung and Stomach channels

45.7% of them possess heat clearing action; 54.3% with antitoxic action.