There can be a range of reasons for a persistent cough. But most chronic coughs are caused by three conditions.

Runny nose, itching eyes, worsening asthma symptoms -- the effects of hay fever are nothing to sneeze at, experts say, ...

About a month ago, I woke up without hearing in my left ear. I initially suspected a wax blockage or a blocked eustachian ...

An AAAAI report says climate change has affected the prevalence and morbidity of allergic rhinitis, nonallergic rhinitis, and chronic rhinosinusitis.