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An allergen is a substance that can trigger an allergic reaction in your body. Common allergens are house dust mites, pollen and animal dander.
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Find out what allergy is and what causes allergies to develop.
Learn about the common symptoms of allergy and how it affects the body.
An allergen extract is a manufactured biological product used for allergy testing.
An allergy is the cause of asthma in about 80% of cases. Learn about the link between allergy and asthma and how allergies may have an impact on quality of life.
Conjunctivitis is an inflammation in the inside of the eyelid causing red, watery and itchy eyes. Pollen and dust mites are common triggers of allergic conjunctivitis, and it often accompanies allergic rhinitis.
Allergic rhinitis is an allergic reaction affecting the upper airways and the membranes of the nose. Allergic rhinitis is also known as hay fever, and the most common triggers are grass and tree pollen.
There are many different ways in which an allergy can be diagnosed. It can depend on the type of allergy and the age of the person being tested. Read more about the different types of tests that can be used.
Anaphylaxis is a severe, sometimes fatal, whole-body allergic reaction. The symptoms, often affecting the breathing, show rapidly after being exposed to a triggering allergen.
Asthma is a chronic lung disease that inflames and narrows the airways, making it breathing difficult. Allergic asthma results from an allergic reaction where the body attacks an allergen, causing asthma symptoms.
Atopy is the genetic tendency to develop allergies.
A blood test measures the amount of allergen-specific antibodies (IgE) in the blood to see if a person is allergic.
Anti-histamines can no longer keep Johan’s allergy symptoms at bay, and his allergies are starting to affect how he performs at work.
Anna dreads the time of year when she is preparing for her annual exams. This stressful time is even more challenging thanks to a runnny nose and itchy eyes.
Histamine is a chemical substance that is released in an allergic reaction. Histamine causes symptoms of allergy, including swelling, itching, sneezing, runny nose and irritated eyes.
IgE is short for immunoglobulin E, which is a class of antibodies that release histamine in an allergic reaction.
Respiratory allergies are caused by allergens in the air and general environment, including pollen, animal dander, moulds and house dust mites .
A skin prick test is used to identify reactions to allergens. If the skin reacts to the allergen extract, it means you’re allergic.
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