Nonallergic rhinitis, also known as vasomotor rhinitis is a medical condition that refers to a set of symptoms that resemble nasal allergies and hayfever (allergic rhinitis) occurring without a known cause. Some of the symptoms of non-allergic rhinitis include Postnasal drip, Runny nose, Sneezing, and Stuffy nose among others. Some patients with nonallergic rhinitis may even develop allergies...