viral rhinitis (eg. Common Cold virus) and allergic rhinitis are very common causes of rhinitis
autonomic stimuli have a greater effect on patients with nonallergic rhinitis than on those with allergic rhinitis
autonomic imbalance favoring the parasympathetic system increases nasal blood flow, edema, and secretions, creating an overall presentation of rhinorrhea and nasal obstruction
types of rhinitis
allergic rhinitis (hay fever)
non-allergic rhinitis with eosinophilia syndrome (NARES)
“perennial intrinsic rhinitis”
some researchers believe that this condition may be a precursor to the aspirin triad of intrinsic asthma, nasal polyposis, and aspirin intolerance
a distinguishing feature of NARES is the presence of eosinophils, usually 10-20% on nasal smears
symptoms are usually due to an inhaled irritant (eg, metal salts, animal dander, latex, wood dusts, chemicals).
the most common hormonal causes of rhinitis are pregnancy, menstruation, puberty, use of exogenous estrogen, and known or occult hypothyroidism.
drug-induced rhinitis / nasal stuffiness
rhinitis.txt · Last modified: 2018/01/09 23:49 (external edit)