Its key compounds including quercetin, kaempferol, 7-O-methylisomucronulatol, baicalein, and formononetin target IL6, MAPK8, PTGS2, PTGS1, and NCOA2 to regulate multiple signal pathways of TCM and play a therapeutic role in the recovery period of COVID-19. This evidence concerns the gene PTGS2 and COVID-19.