CXCL8 and COVID-19: Yang et al.375 showed that Qingfei Paidu Decoction, one of the most well-known anti-COVID-19 formulae, can defend against COVID-19 by regulating multiple CS-related signaling pathways such as the NF-κB and MAPK pathways and cytokines such as TNF-α, IL-1β, and IL-8.