Allergic rhinitis (also known as Hay Fever) is a relatively common condition that involves inflammation of the nasal mucosa in response to allergens. These allergens can trigger release of inflammatory mediators (like histamine) from mast cells, and these mediators can lead to a variety of signs and symptoms. In this lesson, we discuss these signs and symptoms and why these signs and symptoms occur.

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JJ

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It can be hard to tell the difference between having a cold, flu, or just allergies. NYU Langone Director of General Otolaryngology Erich P. Voigt, MD, breaks down the symptoms.

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