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What is an Allergy?

Allergies happen because your body’s immune system has a bad reaction to something that can be harmless to other people such as dust, pollen, or certain foods.

What is an Allergen?

It is the thing that irritates your body and causes you to have an allergic reaction.

Common Allergens

What Are Common Allergy Symptoms?

If an allergen is swallowed, these symptoms can occur:

  • Diarrhea
  • Stomach cramps
  • Vomiting

What is Anaphylaxis?

A severe allergic reaction that affects your entire body and can be deadly.

Symptoms include:
  • Itching, hives and rash all over your body
  • Itching can happen in unusual places such as the lips, the scalp, the ears, the groin area, and under fingernails and toenails
  • Shortness of breath
  • Can result in wheezing or hyper-ventilating
  • Throat tightness
  • Can feel like it is closing

Anaphylactic Reactions Can Kill You!

Get medical attention right away if you think an allergic reaction has caused anaphylaxis.
Symptoms can change quickly, so do not delay!


Below are links to more information about allergies. If you or someone in your family has an allergy or has questions, be sure to talk about it with your doctor.

Complete information about food allergies:

Allergy Internet Resources – links and info about food and other allergies:

Publication & resources from the Centers for Disease Control: