A network pharmacology study showed that quercetin, luteolin, and baicalein were the main compounds of Huopu Xialing Decoction, which might regulate multiple signaling pathways targeting Akt1, MAPK1, cyclin D1 (CCND1), and caspase-8, thus played a therapeutic role on COVID-19 [63]. Here, MAPK1 is linked to COVID-19.