A vasomotor rhinitis can occur in the absence of any detectable etiology: no identified allergy, no hormonal imbalance or infection. It is generally triggered by non-specific irritants such as pollutants, cigarette smoke, aerosol sprays, etc. This phenomenon is called “nasal hyperreactivity”. In vasomotor rhinitis, nasal obstruction (blocked nose) as well as rhinorrhea (runny nose) and sneezing are prominent. In some cases this type of rhinitis can be more difficult to treat.
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