Based on the theory of prescription formulating of Qingfei Paidu Decoction（清肺排毒汤） for the prevention and treatment of coronavirus disease 2019（COVID-19）

problems such as how to evaluate the rationality of the formulation of clinically effective prescriptions

the elaboration rules of the principle of traditional Chinese medicine（TCM） proved recipe and prescription formulation

and techniques in the application of ancient prescriptions are put forward. Meanwhile

from the perspective of prescription

the author thinks in terms of the preparation method

compatibility principle

clinical application and naming of prescriptions of Qingfei Paidu Decoction（清肺排毒汤）

hoping to promote the academic discussion on this field.