Allergists' Archive

Find Allergists close to home...




Frequently Asked Questions: kids Allergies and Asthma

Article - Part 1

Article - Part 2



Allergy definition from Britannica Concise Encyclopedia

Exaggerated reaction by the body to foreign substances that are harmless to most people. Those substances, called allergens or antigens, may include pollens, drugs, dusts, foods, and other items. Immediate allergic reactions result from genetic predisposition or sensitization by previous exposure. Blood vessels dilate and bronchial air passages constrict. A severe reaction (anaphylaxis) can obstruct breathing and may be fatal. Delayed allergic responses (e.g., contact dermatitis) appear 12 hours or more after exposure. Avoiding allergens and taking antihistamines can prevent or treat allergies. When avoidance is not feasible and antihistamines do not relieve symptoms, desensitization can be attempted.



Allergy Basics Center

Allergy Discussion Group
U.S. National Institute of Allergy.   Allergy and Asthma Resources


Advertise on our site!




Copyright 2005 All Rights Reserved.