Allergies

The Basics

Allergic Reaction: Anaphylaxis

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Anaphylaxis is a potentially life-threatening allergic reaction. Common causes of anaphylaxis are allergies to penicillin, bee stings, aspirin, eggs, peanuts, and nuts. In this video, you'll find out other possible causes, what preventive steps you can take to avoid anaphylaxis, and why emergency treatment is needed.
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Allergic Reaction: Angioedema

Angioedema is a skin condition very similar to hives. In hives, raised, red, itchy, irregular bumps appear on the skin. In angioedema, the same thing happens beneath the skin. Instead of being itchy, angioedema is tender or painful. This video offers more details about this condition and how it develops.
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Allergic Rhinitis

Allergic rhinitis is also known as "hay fever." The symptoms can be seasonal, especially in the spring and fall, or year round. In this video, you'll learn what happens when you have allergic rhinitis and what you can do to minimize symptoms.
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Allergies

You have an allergy when your body believes that something harmless, such as peanuts or pollen, can hurt you. Your immune system overreacts. This can cause uncomfortable or even dangerous symptoms.
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Hay Fever (Allergic Rhinitis)

This is an allergic reaction to pollen. Pollen is a fine powder that comes from trees, grass and weeds. Different people are allergic to different types of pollen, and they react to it in different ways. Hay fever can be a real nuisance.
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