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过敏性亦称超敏反应或变态反应。它是具有抗原或半抗原性物质进入过敏体质或特应性人体后使其处于致敏状态,于相同抗原再次进入机体时发生的组织损害或生理功能紊乱的特异性免疫反应。因为呼吸道时时与空气相接触,特别是鼻粘膜神经感受器极为丰富,所以过敏性鼻炎等在人群中的发病率较高。1 诊断1.1 过敏性鼻炎 没有明显着凉受湿等普通感冒诱因,每天或不定时(特别是早起时)打一至数个或一阵喷嚏,有或无鼻痒,无或有乃至大量清水样鼻
Allergic also known as hypersensitivity or allergy. It is a specific immune response with tissue damage or physiological dysfunction that occurs when an antigen or hapten enters the body at an allergy or atopicity, becomes sensitized, and re-enters the body with the same antigen. Because the respiratory air contact with the air from time to time, especially the nasal mucosal nerve receptors is extremely rich, so the incidence of allergic rhinitis in the population higher. 1 diagnosis 1.1 allergic rhinitis is not obvious cold and wet and other common cold incentives, daily or irregular (especially when getting up) hit one to several or a sneeze, with or without itching, no or even a lot of water samples