predisposing factors to allergic rhinitis (AR)

Source: National Institute of Allergy and Infectious Diseases (NIAID)

Environmental Factors:
Seasonal allergic rhinitis (hayfever) is associated with inhalant pollen allergens from:
-- trees in the spring
-- grass and weeds in the summer
-- ragweed in the fall

Perennial allergic rhinitis is caused by:
-- dust mites
-- cockroaches
-- molds
-- animal dander

Aggravating irritants include:
-- tobacco smoke
-- climatic changes (eg, cold weather)
-- air pollution
-- fires
-- perfumes
-- strong odors

Genetic Considerations:
There is a strong genetic predisposition for allergic rhinitis with a family history of:
-- atopic dermatitis
-- asthma
-- allergic rhinitis