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Nonallergic rhinitis is rhinitis—inflammation of the inner part of the nose—not caused by an allergy. Nonallergic rhinitis displays symptoms including chronic sneezing or having a congested, drippy nose, without an identified allergic reaction with allergy testing being normal.
Rhinitis is categorized into three types (although infectious rhinitis is typically regarded as a separate clinical entity due to its transient nature): (i) infectious rhinitis includes acute and chronic bacterial infections; (ii) nonallergic rhinitis [14] includes vasomotor, idiopathic, hormonal, atrophic, occupational, and gustatory rhinitis, as well as rhinitis medicamentosa (rebound ...
Non-allergic rhinitis (NAR) is a condition in which there are symptoms of rhinitis, including rhinorrhea and nasal obstruction, but with negative skin and serum allergy testing results. [7] It can be further categorized into: [citation needed] Non-allergic rhinitis with eosinophilia (NARES) Hormonal rhinitis (such as during pregnancy)
Allergic rhinitis may be seasonal, perennial, or episodic. [9] Seasonal allergic rhinitis occurs in particular during pollen seasons. It does not usually develop until after 6 years of age. Perennial allergic rhinitis occurs throughout the year. This type of allergic rhinitis is commonly seen in younger children. [43]
A runny nose can be caused by anything that irritates or inflames the nasal tissues, including infections such as the common cold and influenza, and allergies and various irritants. Some people have a chronically runny nose for no apparent reason (non-allergic rhinitis or vasomotor rhinitis).
The Nasal Provocation Test (NPT or nasal challenge test) is a medical procedure indicated for help the diagnosis of allergic rhinitis and nonallergic rhinitis. [1] NPT may be monitored by clinical scores, rhinomanometry, acoustic rhinometry, nasal smear cytology and/or spirometry.
Another common condition is nasal congestion, usually a symptom of infection, particularly sinusitis, or other inflammation of the nasal lining called rhinitis, including allergic rhinitis and nonallergic rhinitis. Chronic nasal obstruction resulting in breathing through the mouth can greatly impair or prevent the nostrils from flaring. [65]
Corticosteroid nasal sprays can be used to relieve the symptoms of sinusitis, hay fever, allergic rhinitis and non-allergic (perennial) rhinitis.They can reduce inflammation and histamine production in the nasal passages, and have been shown to relieve nasal congestion, runny nose, itchy nose and sneezing. [2]