ABSTRACT
Objective To explore the efficacy of dermatophagoides farinae drops for treating allergic rhinitis in children and its influence on serum IL‐4 and IL‐35 levels .Methods A total of 80 children with mite sensitized allergic rhinitis in the Central Hospital of Nanyang city from January 2012 to October 2013 were selected as the research subjects and randomly divided into the control group and the observation group according to random number table method ,40 cases in each group .The control group was given the symptomatic treatment ,while the observation group was given sublingual dermatophagoides farinae drops .The treatment lasted for 18 months .The efficacy ,symptom score and eosinophil count value (Eos) were observed .ELISA was used to detect ser‐um IL‐4 ,IL‐35 levels .Results The total effective rate after treatment in the observation group was 97 .50% ,which was higher than 92 .50% in the control group ,but without statistically significant difference between them(χ2 =1 .052 6 ,P=0 .305) .After treat‐ment ,the symptom scores ,medication scores and Eos count had statistical differences in the two groups were significantly lower than before(P<0 .05) ,but which had statistical differences between the two groups after treatment(P<0 .05);serum IL‐4 level af‐ter treatment in the two groups were significantly lower than before(P<0 .05) ,while the IL‐35 level was significantly higher than before(P<0 .05) ,the serum IL‐4 and IL‐35 levels after treatment had statistically significant differences between the two groups (P<0 .05) .The incidence rate of adverse reactions showed no statistically significant difference between the two groups (χ2 =0 .213 3 ,P=0 .644) .Conclusion Sublingual specific immunotherapy of dermatophagoides farinae drops can effectively improve the symptoms of mite sensitized allergic rhinitis in children ,reduces proinflammatory cytokine IL‐4 level and increases suppressing in‐flammatory cytokine IL‐35 level .