Résumé
COVID-19is highly infectious and epidemic, which belongs to the " plague" disease of traditional Chinese medicine and seriously endangers the safety of human life. Based on the theory of Guangwenyilun combined with the treatment experience of COVID-19 in TCM, syndrome differentiation-based treatment and the clinical characteristic of COVID-19is be- ing deeply analysed. COVID-19began because of the" epidemic pathogenic factors", and the pathogenesis is that the dampness and heat generated toxin which blocked the qi movement. The early onset of this disease is in the pleurodiaphragmatic inter- space, and its transmission can be divided into sequential transmission and reverse transmission. Regardless of the direction of its transmission, grasping the transmission of" epidemic pathogenic factors" on the diagnosis and treatment combined with " five distinguishing thought, exterior and interior, accompanying symptoms" theory will be of great importance to help to im- prove the effect of treatment. At the same time, this clinical approach will also provide reference for the diagnosis and treat- ment of any possible new diseases.