Allergies

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.

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.