变态反应在美国人群中估计占１５～３０％。儿童变态反应则更多估计在６０％。有经验的临床医生早就认识到上呼吸、消化道复发性感染和变应性状态间的关系。近期的研究已进展到变态反应基础病理生理，已能解释临床上一些现象的机制。鼻、鼻窦炎最常见的病理途径是由各种原因包? Allergies in the U.S. population are estimated to be 15 to 30%. Children’s allergies are more estimated at 60%. Experienced clinicians have long recognized the relationship between upper respiratory tract, gastrointestinal recurrent infections and allergic states. Recent research has progressed to the basal pathophysiology of allergy, which has been able to explain some of the mechanisms of clinical phenomena. Nasal sinusitis most common pathological path is caused by a variety of reasons?