An allergy is an exaggerated reaction by the immune system in response to exposure to certain foreign substances.
Allergic reactions are sensitivities to substances called allergens that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract.
An allergy attack can be fatal if prompt medical attention isn't given, so knowing your potential allergy triggers could save your life and the life of others.
Allergies especially food allergy is on in high increase among children in America. It is good to equip yourself with the knowledge about allergies.