Rhinitis refers to an inflammatory response of the lining of the membrane of the nose. Nasal allergy is extremely common and affects up to 20% of the population with symptoms that include sneezing, a runny nose or a blocked nose.
Allergic rhinitis may occur for short periods at the same time each year and is caused by allergies to various types of pollen. Allergic rhinitis can also occur all year round giving similar symtoms to hay fever but may be caused by allergies to house dust mites, chemicals, food and animal fur amongst other things.
Many sufferers may have associated evidence of sensitivity such as asthma, eczema, allergic dermatitis and drug allergies.