Understanding Allergies

Sneezing is not always the symptom of a cold. Sometimes, it is an allergic reaction to something in the air. All Allergies summarizes what health experts know about the causes and symptoms of allergic reactions to allergens, how health care providers diagnose and treat these reactions, and what medical researchers are doing to help people who suffer from these allergies.

Allergy Terms You Need To Know

What is an allergy? People who have allergies are often sensitive to more than one substance. These sensitivities manifest in your allergy symptoms in many different ways. Here are the definitions you need to know to better understand allergies.

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Allergy Facts & Figures

Allergic diseases are among the major causes of illness and disability in the United States, affecting as many as 40 to 50 million Americans. Want to know more surprising facts and figures about allergies?

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Last modified: September 28, 2008

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