Table of Contents
What is Allergen and definition
A harmless substance, also called a hapten, that causes an exaggerated response from the IMMUNE SYSTEM called a HYPERSENSITIVITY REACTION. For reasons researchers do not fully understand, the immune system produces antibodies for the substance that result in the IMMUNE RESPONSE perceiving the substance as a foreign invader. When the allergen contacts or enters the body, the antibodies attack it.
Nearly any substance can be an allergen. DESENSITIZATION is a treatment for allergies that exposes the person to progressive doses of the allergen to increase the body’s tolerance for the presence of the allergen and diminish the hypersensitivity reaction.
|almonds animal||dander||aspirin (salicylates)|
|dust and dust mites||eggs||fish|
|fragrances and perfumes||fungi||grasses|