ANATOMY

Detailed explanation-1: -Allergies occur when the body’s immune system misinterprets a foreign but otherwise harmless substance as harmful and then attempts to remove it from the body. The symptoms that occurs as a result of an over-zealous immune system is called an allergic reaction. The things that trigger the reaction are called allergens.

Detailed explanation-2: -An allergy starts when your immune system mistakes a normally harmless substance for a dangerous invader. The immune system then produces antibodies that remain on the alert for that particular allergen.

Detailed explanation-3: -Allergic reactions start in your immune system. If you are allergic to a substance such as dust, mold, or pollen and you come into contact with it, your immune system may overreact.

Detailed explanation-4: -When a harmless substance such as dust, mold, or pollen is encountered by a person who is allergic to that substance, the immune system may over react by producing antibodies that “attack” the allergen. The can cause wheezing, itching, runny nose, watery or itchy eyes, and other symptoms.

Detailed explanation-5: -Allergy is an immune-related disease and results from a hypersensitive immune response to harmless substances in the environment.