![]() |
|
Allergy Terminology : Acute Rhinitis - Inflammation of the nose that occurs for only a few days. Typically this is caused by a virus ("a cold"); if it goes on beyond a week then it is probably bacterial. Allergens - Normally harmless substances which cause an exaggerated allergic reaction (inflammatory response) in sensitive people. Allergic Rhinitis - Medical term for hay fever, a condition due to allergy that mimics a chronic cold. (Hay fever is a misnomer since hay is not a usual cause of this problem and there is no fever. Many substances cause the allergic symptoms in hay fever. Allergic rhinitis is the correct term for this allergic reaction. (Rhinitis means "irritation of the nose" and is a derivative of Rhino, meaning "nose.") Symptoms include nasal congestion, a clear runny nose, sneezing, nose and eye itching, and tearing eyes. Post-nasal dripping of clear mucus frequently causes a cough. Loss of smell is common and loss of taste occurs occasionally. Nose bleeding may occur if the condition is severe. Eye itching, redness, and tearing frequently accompany the nasal symptoms. Chronic Rhinitis - inflammation of the nose that goes on for weeks to months which is different from "a cold", and may be caused by allergy, nasal irritants, structural, or physiological problems. Hay Fever - A seasonal allergy to airborne particles characterized by runny/itchy nose and eyes, sneezing, itchy throat, excess mucus, and nasal congestion. It is a misnomer because it is not caused by hay and it does not produce a fever. Non-Allergic Rhinitis - Inflammatory condition of the nose without an obvious allergy cause. Post Nasal Drip - Mucous accumulation in the back of the nose and throat leading to or giving the sensation of mucus dripping downward from the back of the nose. Summer Cold - Similar to hay fever. Also a misnomer because it is not caused by a virus. Vasomotor Rhinitis - Similar to non-allergic rhinitis, thought to be mediated by an abnormal neuronal control of the blood vessels supplying the nose. |
14th March 2010