Pollen Health Channel

	Feature Article Illustrations for this article Click on an image below to enlarge Positive reaction to allergen Allergen Definition An allergen is a substance that can cause an allergic reaction. Allergens are substances that, in some people, the immune system recognizes as "foreign" or "dangerous" but cause no response for most people. Information Common allergens include: Bacteria, viruses, and animal parasites Chemicals Dust Drugs (such as antibiotics or medications you put on your skin) Foods (such as milk, chocolate, strawberries, wheat) Perfumes Plants Pollen Smoke See also: Allergies Allergic reaction Food allergy Allergy to drugs Antigen Antibody Continue reading this article

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Allergic rhinitis (3 images) Average Rating: (Doctor-Reviewed information)
Allergic rhinitis is a collection of symptoms, mostly in the nose and eyes, which occur when you breathe in something you are allergic to, such as dust, dander, or pollen.When these symptoms are caused by plant pollen, the allergic rhinitis is com...Reviewer: Stuart I. Henochowicz, MD, FACP, Associate Clinical Professor of Medicine, Division of Allergy, Immunology, and Rheumatology, Georgetown University Medical School. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. Date: 01/09/2009

Allergy to mold - animal dander - dust (4 images) (Doctor-Reviewed information)
Allergy-related symptoms can occur after you are around mold, certain animals or animal hair, dust, and other substances. These substances are usually found indoors and do not cause symptoms for most people.Reviewer: Stuart I. Henochowicz, MD, FACP, Associate Clinical Professor of Medicine, Division of Allergy, Immunology, and Rheumatology, Georgetown University Medical School. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. Date: 01/07/2009

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