Rhinitis is an inflammation of the cells lining the nose resulting from the
inhalation of an allergen.
The symptoms include nasal obstruction, runny nose and sneezing. Rhinitis can
be seasonal, e.g. allergy to pollen (hay fever), or [occur] all year round -
e.g. allergy to animals or dust.
Source: Asthmacure.com Glossary
Allergy - Respiratory tract