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Skin prick test is one of the most common allergy test forms.

Skin prick test is one of the most common allergy test forms.
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Allergy testing

An allergy can occur when your immune system reacts to substances (called allergens) that are harmless for most people. In affected people, allergies can trigger conditions such as asthma and hay fever, skin conditions such as eczema, and eye conditions such as conjunctivitis.

Allergy testing is important in managing allergies, as testing indicates what you are allergic to. Testing will also help your doctor advise you on the best ways to avoid these allergens.

Who should have allergy testing?

You may benefit from allergy testing if you suffer from asthma or hay fever, or if you have a reaction to insect stings or certain foods.Testing can detect allergies to dust mites, animal dander, mould spores, pollens, certain foods, some insect stings, chemicals and even certain medications.

Who should perform allergy testing?

It is important that allergy tests are carried out and interpreted by trained health professionals. Your doctor may refer you to a specialist immunologist or allergist if a more complicated assessment is needed. It is important that the results of allergy tests are assessed alongside your medical history.

Some alternative practitioners offer allergy tests and treatments. These tests are often expensive and may be of little or no use in correctly detecting allergies.

Types of allergy tests

The most common forms of allergy tests are the skin prick test and the blood test.

If you have skin prick testing, you would be pricked on the arm or back a number of times, with a tiny amount of allergen dropped onto the pinprick. If you are allergic, where you were pricked will become swollen and itchy. This generally subsides within two hours. Although skin prick testing can be uncomfortable, most people find it tolerable. The results are available within 20 minutes.

Blood tests can be also used to test for allergies.

Other, less common allergy tests include:

  • intradermal skin testing
  • patch testing
  • and oral allergen testing.

How much does allergy testing cost?

In Australia, Medicare covers part of the cost of skin prick tests and blood tests used to detect allergies, if the tests have been ordered by a doctor. You can expect to pay about $120 for each test once Medicare has covered some of the costs. Concession card holders might be charged less.

Last reviewed: February 2016

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