PTGS2 and COVID-19: Recent network pharmacology analysis has revealed that the core compounds of TCM formulas such as Lung-Nourishing and Blood-Activating Capsules can act on targets such as IL-6, MAPK8, and PTGS2, regulating multiple signaling pathways including PI3K-Akt and MAPK, thereby exerting therapeutic effects during the recovery phase of COVID-19 (Lyu et al., 2021).