[The desensitization therapy in children with nasal allergy to house dust].

A study about the desensitization therapy carried out on children with nasal allergy to house dust who were under 15 years old. The good effect was seemed in 35.7% of patients with the desensitization for 3 months, and 62.7% for 6 months, 90.0% for 12 months, 92.7% for 24 months. The patients with the desensitization for over 6 months had a considerable effect, as if they dropped out. In the questionnaire to patients who dropped out with no contact to us, the effect of this therapy was seemed on 83.3% in those who answered questions, as so we considered that the sensitization for children with nasal allergy was very important as the basic therapy. Refer to the efficacy of this therapy, it was seemed to be recommended to children who were about from 7 to 9 years old, or those who had allergic rhinitis for a long time. At the point of 6 months after starting HD desensitization, the patients who reacted intensively to the provocation test had not significantly the efficacy compared with those who reacted slightly, but other clinical data were not significantly concerned with the efficacy of this therapy.