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Step 1
Person eats an alleged or substance that causes an allergic reaction for first time. -
Step 2
The body creates an antibody -
Step 3
The antibody attaches itself to cells in the body in preparation for the allergen -
Step 4
The allergen attaches to the antibody and send out a signal telling the body to release histamine whenever allergic enters the body -
Step 5
Histamine causes irritation in body. -
Step 6
Irritation is different for everyone and occurs in different parts of body
