What’s the difference between nonallergic rhinitis and allergic rhinitis?

What’s the difference between nonallergic rhinitis and allergic rhinitis?

Allergic rhinitis (hay fever) is trigged by allergens that trigger an immune response. These triggers include (but aren’t limited to) pollen, mold, pet dander or other allergens. Symptoms include chronic nasal congestion, runny nose, sneezing, sore throat and postnasal drip.

With nonallergic rhinitis, triggers like odors, smoke, medications and hormonal imbalances generally cause you to sneeze or have a runny nose. You may also have a chronic cough from postnasal drip.