In animal experiments, our research group [19] found that LHQW capsules could clearly reduce the levels of IL-8 and TNF-α in serum, lung tissue, and bronchial lavage fluid of COPD rats (P < 0.01), and we confirmed its ability to suppress airway inflammation in COPD rats. This evidence concerns the gene CXCL8 and chronic obstructive pulmonary disease.