The content of PCT increases when obvious infection occurs, and its specific content is positively correlated with the severity of infection.20,21 This study detected the difference of the above-mentioned inflammatory mediators in the serum of the two groups, and it was found that the serum levels of TNF-a and PCT in the two groups decreased after treatment, indicating that both treatments could alleviate the infection symptoms of children; the serum levels of TNF-α and PCT in the observation group were lower compared to the control group. The gene discussed is TNF; the disease is infection.