The significantly increased inflammatory cytokines in children with asthma exacerbation compared as those with stable asthma were granzyme B, IL‐2, IL‐10, IL‐17A, MIP‐1α, MIP‐1β, PD‐L1, and tumour necrosis factor‐α, as shown in Table S3. The gene discussed is CCL3; the disease is asthma.