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.

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.

hay fever

[′hā ‚fē·vər]
(medicine)
An allergic disorder of the nasal membranes and related structures due to sensitization by certain plant pollens. Also known as allergic rhinitis; pollinosis.

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
References in periodicals archive ?
Hay fever is an allergic reaction caused by the body's response to grass, tree or plant pollen in the air.
During the hay fever months your symptoms can be worse if you live with asthma too, as your airways may already be swollen, and the inflammatory effect of a hay fever reaction can add to the difficulty of breathing.
Yes, it might look - and even feel - a little weird, but it's a much better alternative to the effects of hay fever.
A (https://www.cdc.gov/nchs/fastats/allergies.htm) health survey conducted in 2017 by the Centers for Disease Control and Prevention showed that about 19.9 million people in the United States were affected by hay fever in a year.
As most of the worst hay fever symptoms are caused by pollen entering the nose (as opposed to the eyes and throat), this is another good drug-free method to try.
Ann-Marie Horan, of the Irish Pharmacy Union, said: "The key to treating hay fever is finding the treatment that works for you - there is no one-size-fits-all cure because everyone experiences it differently.
Contact with pollen from trees, grass and weed can give hay fever sufferers runny noses, itchy and red eyes, headaches and ear aches.
"Our research found that generic hay fever remedies work just as well."
Itchy eyes, blocked or runny nose, sneezing and other hay fever symptoms are all caused when your body is exposed to pollen and reacts as if it were harmful.
According toMirror Online, a survey of 2,000 hay fever sufferers by the Met Office revealed that 41 per cent suffer so badly that it ruins their whole summer.
It said one in five people in the UK suffer from hay fever with 95% of hay fever sufferers having an allergic reaction to grass pollen.
[USA], May 25 ( ANI ): According to a recent study, adolescents with allergic rhinitis, often called hay fever, have higher rates of anxiety, depression and a lower resistance to stress.