Hypersensitivity Diagnosis

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Diagnosis

A family history can help to determine whether a child is likely to have a food allergy, and various tests are used to determine which food is causing the reaction. A child may be allergic to more than one food.

Skin tests The allergy skin-prick test is the most common screening test because it is inexpensive and easy to do. It involves pricking the skin with a solution of the suspected food. A positive test will produce a small hive-like reaction, but a positive result does not...

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