TNF and COVID-19: Pu et al. (2020), Gao et al. (2020), and Chen et al. (2020e) reported that Reduning Injection might act on targets such as inflammatory cytokines and MAPKs through its active ingredients quercetin, kaempferol, beta-sitosterol, luteolin, isorhamnetin, and chrysoeriol, to regulate the AGE-RAGE, human cytomegalovirus infection, TNF, and IL17 signaling pathways and to treat COVID-19 patients.