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On Being Poked, Prodded, and Otherwise Tested

A RAST test, or radioallergosorbent test, is a type of blood test used to diagnose allergies. Learn how a RAST test works and what to expect at the doctor's office.

Recently diagnosed with a shellfish allergy? Here's all you need to know to get started living with shellfish allergies, from foods containing shellfish to how seafood allergies affect your risk of anaphylaxis to whether people with shellfish allergi

All about elimination diets (exclusion diets): how exclusion diets are used to diagnose allergies, how elimination diets work, and different types of elimination diets (like few foods diets and rare foods diets).

The gold standard for allergy diagnosis is the double-blind placebo-controlled food challenge, a form of oral food challenge. Find out how double-blind placebo-controlled food challenges work and why your doctor might recommend this test.

Five tools your doctor is likely to use to diagnose food allergies --- skin testing, elimination diets, and more.