Allergic rhinitis is when exposure to an irritant (such as pollen, dust, pet dander, or mold) causes an allergic reaction resulting in inflammation of the sinuses. [1]
What is allergic rhinitis?
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•Last Updated: May 16, 2025
Allergic rhinitis is an allergic reaction triggered by irritants like pollen, dust, pet dander, or mold and leads to inflammation of the sinuses.