
The cost of airway disease to the health care delivery system and society at large is substantial with nearly $30 billion in direct and indirect costs expended annually.
There were more than 12 million physician office visits because of allergic rhinitis in 2006.
In one study, 55% of patients with sinusitis also had a history of allergic rhinitis.
Sinusitis is one of the leading forms of chronic disease, with an estimated 18 million cases and at least 30 million courses of antibiotics per year.
Asthma accounts for 217,000 emergency room visits and 10.5 million physician office visits every year.