hay fever

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hay fever,

seasonal allergyallergy,
hypersensitive reaction of the body tissues of certain individuals to certain substances that, in similar amounts and circumstances, are innocuous to other persons. Allergens, or allergy-causing substances, can be airborne substances (e.g.
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 causing inflammation of the mucous membranes of the nose and eyes. It is characterized by itching about the eyes and nose, sneezing, a profuse watery nasal discharge, and tearing of the eyes. The cause is a sensitivity to one or more species of pollens or fungi. In addition, many patients with hay fever develop other allergic conditions, e.g., asthmaasthma
, chronic inflammatory respiratory disease characterized by periodic attacks of wheezing, shortness of breath, and a tight feeling in the chest. A cough producing sticky mucus is symptomatic.
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 and sinusitis. In the spring, hay fever may be caused by tree pollens (oak, elm, maple); in summer, by grass pollens, wheat or corn rusts, or fungus spores; in late summer and fall, by ragweed pollen, which is the most common cause. Temporary relief of symptoms may be obtained from antihistamines and decongestants, such as ephedrine. Physicians may resort to corticosteroids in severe cases. Sometimes desensitization measures are taken, consisting of repeated injections of small amounts of the allergen (pollen) until its presence produces no symptoms; however, the treatment must be continued from year to year, since immunity is not permanent. Some relief can be obtained by removing pollen from the air by air conditioners and filters.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Hay Fever


an allergic disorder in man, caused by sensitivity to the pollen of certain plant species. Hay fever belongs to the group of pollinoses. The disorder appears during the flowering of grasses and trees. Pollinoses may be spring, summer, or autumn reactions, depending on individual sensitivity to a certain species of pollen and on the time of flowering of the offending plant. Clinical manifestations include irritation of the mucous membranes of the nose and eyes and, less frequently, attacks of asthma. Treatment involves specific desensitization between attacks and the use of such symptomatic preparations as ephed-rine, Adrenalin, and antihistamine preparations during the allergy season. Prophylaxis includes changing the place of residence during the hay-fever season and other means of avoiding contact with the allergen.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

hay fever

[′hā ‚fē·vər]
An allergic disorder of the nasal membranes and related structures due to sensitization by certain plant pollens. Also known as allergic rhinitis; pollinosis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

hay fever

an allergic reaction to pollen, dust, etc., characterized by sneezing, runny nose, and watery eyes due to inflammation of the mucous membranes of the eyes and nose
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
He highlighted, that the government has been launched the pollen allergy awareness campaign to deliver health lectures regarding precaution, prevention and cure of pollen allergy.
Waseem Khawaja talking to The Nation said that a large number of patients with respiratory problems in pollen allergy season are visiting the hospital.
* The report provides a snapshot of the global therapeutic landscape of Birch Pollen Allergy
* The report reviews key players involved in the therapeutics development for Cedar Pollen Allergy and enlists all their major and minor projects
Estimates of the percentage of patients with pollen allergy who also suffer from PFS vary from 47% to 70%, and this is thought to be the most common food allergy in adolescents and adults.
Luckily, even the worst pollen allergy is only a temporary misery.
Although some persons may require desensitization (a series of shots) to control severe pollen allergy, many persons who previously suffered severely from pollen allergy have obtained complete or marked relief from the use of nasal inhalers containing various steroidal anti-inflammatory agents, such as Beconase, Flonase, Nasacort, Nasalide, etc.
In the case of pollen allergy, the antibody is specific for each type of pollen: one antibody may be produced to react against oak pollen and another against ragweed pollen, for example.
ISLAMABAD -- Health experts have advised pollen allergy patients of the federal capital to take special preventive measures in prevailing high risk pollen season to avert any medical complication.
ISLAMABAD -- Health experts on Sunday advised the pollen allergy patients of federal capital to take special preventive measures in prevailing high risk pollen season to avert any medical complication.
ISLAMABAD: Health expert Tuesday warned asthma Patients to take extra preventive measures to avoid medical complications in up coming high risk pollen allergy season .
MANSEHRA -- The local government has planned to chop down eucalyptus trees on the district council's premises to address pollen allergy and water shortage in the surrounding areas.