fdfae7e8_Untitled_Document__1
[0] Non-Allergic Asthma [2] Airborne particles (e.g., coal, chalk dust) Air pollutant (e.g., tobacco smoke, wood smoke) Strong odors or sprays (e.g., perfumes, household cleaners, cooking fumes, paints or varnishes) Viral infection (e.g., colds, viral pneumonia, sinusitis, nasal polyps) Aspirin-sensitivity Gastro esophageal reflux disease (GERD) [3] About one-third of all asthma sufferers have non-allergic asthma. [1] 
Caused by viral infections, certain medications or irritants found in the air, that aggravates the nose and airways.
Untitled Document
1