What causes an allergy?
An allergy is a reaction by the body to an irritant substance (an allergen)
or combination of substances. Common forms of allergic reaction include
itchy nose and eyes, rash, sneezing, fluid streaming from eyes, itchy
skin or chest tightness.
Extreme reactions may include breathlessness, a rapid increase in pulse,
shock and fainting. Certain allergens will cause an individual to suffer
anaphylactic shock, which if not treated promptly may cause death.
What causes an allergy?
Essentially an allergic reaction is chemical in nature. Our immune system
reacts to defend us aganist an irritant. Many people are born with an
allergy to a substance or combination of substances. As we grow older
and our exposure to differing substances is expanded we may develop further
reaction to irritants. Common irritants include pet hairs, household
dust mites and mould spores. Grasses and plants are powerful allergens.
Certain medicines may provoke an allergic reaction also.
Can food cause a reaction?
Yes. Some people react to nuts, nut oils, shellfish and certain dairy
products. As food processing becomes more complex and greater varieties
of foods, additives, beverages and sauces appear in our shops the potential
for an allergic reaction may be increased.
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