An allergen is a type of antigen that produces an abnormally vigorous immune
response in ... Another type of allergens are urushiol, a resin produced by poison
ivy and poison oak, which causes the s...
Types of Allergies. Allergies, including allergic rhinitis, affect an estimated 40
million to 50 million people in the United States. Some allergies may interfere
Learn about the different types of allergies and what you can do about them.
Sneezing, difficulty breathing, cramps, and vomiting–all are allergy symptoms.
Learn the types of allergies, specific allergy symptoms, and emergency warning ...
Learn about the different types of allergies, including causes, symptoms, and
In this section, we cover all of the many types of allergic conditions, including
allergies to food, drugs, airborne allergens and those affecting the skin.
It reacts by causing an allergic reaction. Substances that cause allergic reactions
are allergens. There are many types of allergies. Some allergies are seasonal ...
Mar 21, 2012 ... ... 50 million Americans are allergic to something — whether pollen, peanuts, or
pet dander. Learn some of the most common kinds of allergies.
Many different types of allergens can trigger an allergic reaction, requiring clinical
care by a physician or other health care professional. Listed in the directory ...
People who have allergies often are sensitive to more than one substance. Types
of allergens that cause allergic reactions include: Pollens; House dust mites ...