A look at how and why to use nasal sprays
Nasal asthma. Ever heard of it? Probably not, because I just made it up. Before you thumb your nose at the idea, consider that the nose and lower airways are all part of the respiratory pathway and share similar immune responses to allergens, irritants and viruses. And while it is possible to have one condition without the other, for many of us, nasal symptoms (rhinitis) usually herald the onset of asthma symptoms to come.