Chinese medicine prevention and treatment program for novel coronavirus pneumonia (COVID-19): a perspective, double-blind, placebo, randomised controlled trial

INTERVENTION: (ordinary) Western medicine group:Use the (ordinary) western medicine treatment plan in "the diagnosis and treatment plan of new coronavirus infection pneumonia" issued by the National Health Commission of the fourth edition.;(ordinary) Chinese and Western Medicine Group:Use the (ordinary) TCM clinical prescription combined with the western medicine treatment plan in "the diagnosis and treatment plan of new coronavirus infection pneumonia" issued by the National Health Commission of the fourth edition.;(severe) Western medicine group:Use the (severe) TCM clinical prescription combined with the western medicine treatment plan in "the diagnosis and treatment plan of new coronavirus infection pneumonia" issued by the National Health Commission of the fourth edition.;(severe) Chinese and Western Medicine Group:Use the(severe)TCM clinical prescription combined with the western medicine treatment plan in "the diagnosis and treatment plan of new coronavirus infection pneumonia" issued by the National Health Commission of the fourth edition.; CONDITION: novel coronavirus pneumonia (COVID‐19) PRIMARY OUTCOME: Recovery time;Ratio and time for the general type to progress to heavy;Ratio and time of severe progression to critical or even death; SECONDARY OUTCOME: Improvement of TCM syndromes;Relief of clinical symptoms (fever, fatigue, gastrointestinal discomfort, etc.) and duration;Lung HRCT score improvement;Average length of hospital stay;Adverse event rate;Quality of life (SF 36); INCLUSION CRITERIA: (1) Patients who meet the diagnostic criteria of the common type of confirmed cases (the initial stage of clinical treatment of traditional Chinese medicine) or the severe cases of confirmed cases (the middle stage of clinical treatment of traditional Chinese medicine); (2) The cases of common type (the initial stage of clinical treatment of traditional Chinese medicine) belong to the type of cold‐dampness stagnant lung; (3) The confirmed cases were severe (in the middle stage of clinical treatment of traditional Chinese medicine). (4) The patients knew and agreed to participate in this study.