These have been proven to affect COVID-19 treatment positively.[44–46] Wu et al found quercetin inhibited influenza infection by interacting with the HA2 subunit.[38] According to previous reports, RJP can treat diabetic repair ulcers through the Wnt/β-catenin pathway and can play an anti-inflammatory role by down-regulating IL1A, which is consistent with the key nodes derived from our PPI protein interaction.[47] Moreover, RJP wound healing is the reaction of cells to injury; fibronectin is one of the key proteins in dynamic wound healing. This evidence concerns the gene FN1 and COVID-19.