User:Mr. Ibrahem/Rhinitis

Rhinitis, also known as coryza, is swelling and inflammation of the mucous membranes inside the nose, resulting in the feeling of a runny or stuffy nose. Other symptoms may include an itchy nose or eyes, watery eyes, or sneezing. It can negatively affect quality of life.

The most common causes are allergies and the common cold. Other causes may include irritants like smoke or weather changes. Diagnosis is generally based on symptoms. It is divided into four main groups allergic, infectious, non-allergic, and anatomical. Non-allergic includes vasomotor; irritant; drug-induced, including rhinitis medicamentosa; hormonal; atrophic; CSF leak; and nonallergic rhinitis with eosinophilia syndrome (NARES).

Treatment of allergic disease includes avoiding triggers, antihistamines, nasal steroids, and immunotherapy. Nasal steroids may also be used for non-allergic cases. Nasal decongestant should not be used for more than 3 or 4 days.

Rhinitis is very common. In the United States allergic rhinitis is estimated to affect up to 58 million people while non-allergic rhinitis is estimated to affect up to 30 million people. Vasomotor rhinitis is the most common non-allergic type. About a third of cases may have a mix of nonallergic and allergic rhinitis.