Allergic asthma is associated with airway hyperresponsiveness (AHR), eosinophils infiltration and increased mucus secretion in the airway.

• 过敏性气喘往往伴随著呼吸道过度反应、嗜酸性白血球在肺部的浸润、呼吸道分泌过多黏液等症状。