Objective：To study the clinical effect of Pidotimod solution in the treatment of children with recurrent respiratory infection.

Methods：Totally 80 children with recurrent respiratory infection treated from May 2014 to May 2015 in our hospital were selected. The patients were equally divided into control group and test group. Both groups received the conventional therapy. The test group was also given Pidotimod solution. The curative effect of two groups was observed.

Results：The curative effect of test group was better than control group(P＜0.05). After treatment, the level of IL-6 and IL-10 in test group was much lower, while the level of IFN-γ of test group was much higher(P＜0.05). After treatment, the level of IgE of test group was much lower, while the level of IgA and IgG of test group was much higher(P＜0.05).The time for infection to disappear, the infection frequency and the duration of antibiotic use were much shorter in the test group(P<0.05).
Conclusion：Pidotimod solution has an obvious effect on children with recurrent respiratory infection. It is worthy of promotion.