What is Allergy?

Allergy attack many people in both urban and rural. Precautions are usually done by them is by taking drugs or avoid cause.
From the several scientific reports and health data, allergic disease is a disease with high prevalence. Allergies often affect all organs, especially if we have a family history of allergies.
Allergies can disrupt all the organs and systems of the body, including the brain dysfunction, difficulty concentrating, sleeping, talking, hyperactive and also aggravate the symptoms of autism.

Allergies that we often encounter is a food allergy. This allergy occurs because we consume food allergens. So what exactly is allergy?
The term "Allergy" was first used in 1905 by Clemens Pirquet (1874-1929). The term is used to describe allergic reactions due to horse serum injections given to fight infection
Allergy is an overreaction of the immune system to certain substances that enter the body. Antibody immune system tries to neutralize foreign substances that are considered dangerous. One of the antibodies is the IgE antibody which protects the body from parasites that harm the body.

The reaction is a cause of excessive IgE allergy symptoms, such as bumps, itching, shortness of breath.

Foreign objects cause allergies are called allergens. Allergens can go through anything to the body: the mouth, nose, skin.