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Symptoms of a Food Allergy

During an allergy attack, symptoms may vary based upon where histamine is released in the body. Allergic reactions can be as simple as a sneeze or an upset stomach, but they can also be as terrifying as anaphylactic shock.

  1. Digestive Symptoms

    • Stomach pain, nausea, vomiting and diarrhea can all be symptoms of an allergic reaction.

    Skin Symptoms

    • Hives and eczema can appear on the skin, along with swelling of the lips or throat, mere moments after a food is eaten.

    Respiratory Symptoms

    • Some food allergies may manifest simply by provoking sneezing or coughing, but severe reactions can result in anaphylaxis (breathing difficulties resulting from the closing of the throat).

    Other Symptoms

    • Food allergies may also cause lightheadedness, dizziness or, in extreme cases, a loss of consciousness.

    Exercise-Induced Food Allergies

    • As the body becomes physically stimulated, a person can become itchy or lightheaded. Hives and even anaphylaxis can occur. Such a condition can be prevented by avoiding food for up to two hours before exercise.

    Fruit and Vegetable Allergies

    • Certain fruits and vegetables can cause a cross-reactive allergy. Proteins in certain foods can provoke a reaction if one is allergic to the pollens similar to them. Cooking foods can alleviate these allergies.

    How to Treat a Food Allergy

    • If an allergic reaction is not serious, it can be treated with an over-the-counter antihistamine product such as Benadryl. However, if a person suffers from breathing difficulties, hives or severe swelling around the mouth or eyes, medical attention is needed. The use of an epinephrine syringe (commonly known as an Epi-Pen) can often delay the onset of anaphylaxis. An anaphylactic allergic reaction can be fatal if not treated as quickly as possible.

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