Because<unk>  is often characterized as a "symptom" rather than a separate condition, the exact incidence is unknown and varies by its etiology. Chronic rhinitis, which includes allergic and non-allergic rhinitis, can affect 30-40% of the population. Non-allergic rhinitis is more common in females than in males.
Post-nasal drip
Nasal congestion
Burning mouth syndrome
Epiglottitis
Croup
Rhinosinusitis
Hajj Cough
Nasal polyp