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Allergic rhinitis (hay fever)

Synonyms

  • Acute rhinitis, airborne allergens, allergen, allergen immunotherapy, allergic reaction, allergic response, allergies, allergy, antihistamine, atrophic rhinitis, butterbur, choline, chronic rhinitis, corticosteroid sprays, cromolyn sodium, decongestant, ephedra, hay fever, histamine, Ig, IgE, immune, immune defense system, immune reaction, immune response, immune system, immunoglobulin, immunoglobulin E, immunotherapy, nasal allergies, nasal congestion, nasal irrigation, nasal sprays, non-allergic rhinitis, sinusitis, perennial rhinitis, pollen, pollinosis, postnasal drip, radioallergosorbent test (RAST®), seasonal allergic rhinitis, seasonal allergies, snuffles, stinging nettle, vasomotor rhinitis, vitamin E.

Background

  • Rhinitis is the medical term for inflammation of the nose. Viruses, bacteria, allergens, and irritants can cause inflammation of the nasal mucus membrane, which results in rhinitis. Once inflamed, the nose produces excessive mucous, which causes a runny nose, nasal congestion, and postnasal drip (when mucus drips from the sinuses, down the throat).
  • Allergic rhinitis is one of the most common allergies. This type of rhinitis occurs when the body's immune system overreacts to an airborne substance that is normally harmless (allergen), such as mold, pollen, animal dander, or dust mites. Once the allergen is inhaled through the nose, white blood cells of an allergic individual produce an antibody called immunoglobulin E (IgE). This immunoglobulin attaches to the allergen, which triggers the release of histamine and other inflammatory chemicals that cause allergic rhinitis symptoms, such as runny nose and nasal congestion.
  • Allergic rhinitis may occur as either acute (short-term) or chronic (long-term). Acute rhinitis is short-term and classified as the common cold, while chronic rhinitis is recurrent, with periods of remission in between. Chronic rhinitis lasts three months or longer.
  • There are two types of allergic rhinitis - seasonal allergic rhinitis and perennial allergic rhinitis.
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Non-Allergic Types of Rhinitis

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Causes

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Symptoms

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Complications

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Diagnosis

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Treatment

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Integrative Therapies

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Prevention

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Author Information

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Bibliography

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The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.