Date: Sun, 19 May 2013 05:51:44 +0200
- About.com Allergies
Your Runny Nose May Not Be Caused By Allergies
A runny nose, known medically as rhinorrhea, is a common symptom of nasal allergies. Often rhinorrhea is accompanied by other symptoms if caused by nasal allergies, such as itchy eyes and nose, nasal congestion and sneezing. Rhinorrhea may also be caused by non-allergic causes, such as the common cold, as well as by irritants such as cold air and eating spicy foods -- this form of rhinorrhea is called gustatory rhinitis. An unusual cause of rhinorrhea can be caused by a leak of brain fluid from a hole in the lining around the brain near the sinuses -- called CSF (cerebrospinal fluid) rhinorrhea. CSF rhinorrhea results in a "spurt" of thin, clear fluid coming out of the nose, particularly with positional changes (such as sitting up) or pressure changes (such as straining). A person with CSF rhinorrhea often goes years without a diagnosis, because symptoms are often blamed on nasal allergies -- but won't respond to typical allergy treatments. Allergists and ENT (ear-nose-throat) physicians are typically aware of this condition, and know how to test for it. Treatment usually involves a ENT or neurosurgeon localizing the leak and fixing it with a glue-like substance or patch of skin....