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health advisory Hospital Diseases 2007-11-12 20:38:33

It is in part inherited, once upon a time it was a useful response as hypersensitive individuals were more efficient at dealing with parasites, now it is just a nuisance.

50% of patients will get relief of symptoms with oral antihistamines alone, the rest need local managements for eyes, nose, chest and occasionally throat. These are either steroids, mast cell stabilisers or local antihistamines.

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It is caused by an allergy to pollen or sometimes mold spores. In hayfever the body's immune system over reacts to the presence of external substances, as if they were something toxic. This results in irritation and inflammation.

Allergic rhinitis [hay fever ]can lead to other diseases such as sinusitis and asthma.

Hayfever often runs in families, and is also related to asthma

The allergens that trigger hayfever cannot be eliminated and can only be minimized. It is usually caused by inhaled allergens such as grass, weed, mold, spores, pollen, dust mites, chemicals, cosmetics, deodorants, animal hair and some food as well as weather conditions.

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