Under the action of Panzerina lanata, the captured speed of neutrophils with high expression of PSGL-1 in peripheral blood by vascular endothelial cells was greatly improved, and the neutrophils with high expression of CXCR2 acquired stronger chemotaxis and migration ability; consequently, a larger number of neutrophils arrived to the infected site; upon reaching the infected site, the neutrophils with high expression of MPO were activated after recognizing MRSA, further strengthening production of ROS and rapid release of NETs to eradicate MRSA, thus exerting an anti-infection effect. This evidence concerns the gene CXCR2 and infection.