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  • Allergen

    An allergen is a substance that can trigger an allergic reaction in your body. Common allergens are house dust mites, pollen and animal dander.

    Articles mentioning this word

    • What is allergic disease?

      Find out what allergy is and what causes allergies to develop.

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    • What are the symptoms?

      Learn about the common symptoms of allergy and how it affects the body.

      Read more
  • Allergen extract

    An allergen extract is a manufactured biological product used for allergy testing.

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    • The link between allergy and asthma

      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.

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  • Allergic Conjunctivitis

    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

    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.

    Articles mentioning this word

    • How is allergy diagnosed?

      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.

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    • The link between allergy and asthma

      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.

      Read more
  • Anaphylaxis

    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.

    Articles mentioning this word

    • What are the symptoms?

      Learn about the common symptoms of allergy and how it affects the body.

      Read more
    • What is allergic disease?

      Find out what allergy is and what causes allergies to develop.

      Read more
  • Asthma

    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.

    Articles mentioning this word

    • How is allergy diagnosed?

      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.

      Read more
    • What is allergic disease?

      Find out what allergy is and what causes allergies to develop.

      Read more
  • Atopy

    Atopy is the genetic tendency to develop allergies.

    Articles mentioning this word

    • How is allergy diagnosed?

      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.

      Read more
    • What are the symptoms?

      Learn about the common symptoms of allergy and how it affects the body.

      Read more
  • Blood test

    A blood test measures the amount of allergen-specific antibodies (IgE) in the blood to see if a person is allergic.

    Articles mentioning this word

    • Dealing with allergy at work

      Anti-histamines can no longer keep Johan’s allergy symptoms at bay, and his allergies are starting to affect how he performs at work.

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    • Preparing for exams

      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.

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  • Conjunctivitis

    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.


  • Histamine

    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

    IgE is short for immunoglobulin E, which is a class of antibodies that release histamine in an allergic reaction.


  • Respiratory allergies

    Respiratory allergies are caused by allergens in the air and general environment, including pollen, animal dander, moulds and house dust mites .


  • Skin prick test

    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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