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Step One
A person eats the allergen that causes an allergic reaction -
Step Two
The body creates an antibody that detects harmful substances -
Step Three
The antibody attaches itself to cells found in tissues in the body to prepare the body if the allergen enters the body again -
Step Four
The allergen attaches to the antibodies and sends out signals to the body to release large amounts of histamine when the food allergen enters the body again -
Step Five
The histamine causes irritation and swelling in parts of the body. -
Step Six
The result of this irritation varies in person to person, from mild hives to shortness of breath
