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Allergic rhinitis

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Allergic rhinitis

Allergic rhinitis, or hay fever, is a collection of symptoms, predominantly in the nose and eyes, to allergens such as dust, dander and pollen. The sensitized immune system produces antibodies to these allergens, which cause chemicals called histamines to be released into the bloodstream, causing itching, swelling of affected tissues, mucus production, hives, rashes, and other symptoms. Symptoms vary in severity from person to person.

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Definition Alternative Names Causes, incidence, and risk factors Symptoms Signs and tests Treatment Expectations (prognosis) Complications Calling your health care provider Prevention References

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Nasal Allergies

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Acute Upper Respiratory Infection (URI)

German Measles (Rubella)

Rhinitis (Runny Nose)

Severe Acute Respiratory Syndrome (SARS)

Sinusitis

Whooping Cough

·As a Cause

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