Truncation therapy in the treatment of plague disease advocates early expulsion of external pathogen

attaching importance to the purgative method to contain the transmission of the disease. Truncation therapy combined with the theory of "never being too early to use purgative method" in Jin-Yuan and Ming-Qing Dynasties

the idea of which came from the theory of "curing disease before it arises" in Inner Canon of Yellow Emporor

and the application of the formula was inspired by ZHANG Zhongjing′s purgative method. Coronavirus disease 2019（COVID-19） is an plague disease easy to spread and change. Combined with connotation of truncation therapy of plague disease

analyzing related treatment schemes by traditional Chinese medicine（TCM）

the author proposes that in the treatment of COVID-19

we should focus on the method of draining the exorcism and dialectical before treatment in addition to the treatment for dispersing Moyuan. Purgative method to dispel pathogen is not confined to the dung knot to expel pathogen

to contain the illness development as soon as possible

to reduce the conversion of mild cases to severe cases

and to improve survival rate and reduce mortality.