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Explore overview, symptoms, causes, treatment, diagnosis, prevention, and FAQ articles for this condition.
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What is Allergic rhinitis
Allergic rhinitis is an immune-mediated inflammatory condition of the nasal mucosa triggered by exposure to airborne allergens such as pollen, dust mites, animal dander, or mold spores. It involves the lining of the nose and nearby upper airway structures, where the…
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Symptoms of Allergic rhinitis
What are the symptoms of allergic rhinitis? The condition most commonly produces sneezing, a runny or blocked nose, itching in the nose and eyes, watery eyes, and a reduced sense of smell. These symptoms arise when the immune system reacts to…
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Causes of Allergic rhinitis
Allergic rhinitis develops when the immune system incorrectly identifies a normally harmless airborne substance as a threat. In response to that substance, known as an allergen, the nasal lining becomes inflamed and produces the characteristic pattern of congestion, watery discharge, sneezing,…
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Treatment for Allergic rhinitis
Allergic rhinitis is treated with a combination of allergen avoidance, medications that suppress allergic inflammation, and, in selected cases, immunotherapy. These treatments are aimed at the biological processes that drive the condition: allergen exposure, IgE-mediated mast cell activation, release of histamine…
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Diagnosis of Allergic rhinitis
Allergic rhinitis is diagnosed by combining a careful clinical assessment with targeted testing when needed. The condition occurs when the immune system reacts to harmless airborne substances, such as pollen, dust mites, mold spores, or animal dander, by releasing inflammatory mediators,…
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Prevention of Allergic rhinitis
Allergic rhinitis can often be reduced in risk, but it cannot always be fully prevented. The condition develops when the immune system becomes sensitized to airborne allergens such as pollen, dust mites, mold spores, animal dander, or occupational particles, and then…
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FAQ about Allergic rhinitis
Allergic rhinitis is one of the most common allergic conditions, and many people know it as hay fever, although it is not limited to pollen season. This FAQ explains what allergic rhinitis is, why it happens, how it is diagnosed, what…