Rhinitis is a condition that is characterized by inflammation of the lining of the nasal cavity. The inflammation results from expanding blood vessels in the lining. This condition fills the lining with fluid and blood. The swelling associated with non-allergic rhinitis can be triggered by many different environmental factors. These include airborne irritants such as smog, cigarette smoke, dust and perfumes. Changes in weather, including temperature and humidity, can also cause the nasal lining to swell. An infection such as a cold or the flu can lead to non-allergic rhinitis. Other triggers include alcoholic beverages and some types of food, including spicy or hot foods. Stress, changes in hormone levels and certain medications are also triggers for non-allergic rhinitis.
Runny Nose
A runny nose is a symptom of non-allergic rhinitis. The nasal discharge can vary in consistency from watery to thick. The color of the nasal discharge can also vary from being mostly clear to having a grayish tint.
Postnasal Drip
A runny nose can result in mucus running down the back of throat, a condition known as postnasal drip. Postnasal drip can result in coughing and a sore or scratchy throat.
Congestion
The swelling of the lining in the nasal cavity and the presence of excess fluids can result in nasal congestion. After the initial onset of an episode of non-allergic rhinitis, the congestion can worsen over a period of several days. According to the Cleveland Clinic, nasal congestion typically begins to improve within a week of the outbreak.
Sneezing
Sneezing is another symptom of non-allergic rhinitis. Sneezing is an involuntary, forceful exhalation of air through the nose and mouth and is caused by irritation to the mucous membranes of the nose or throat.
