(Allergy, Peanut; Nut Allergy; Allergy, Nut)
- Eating peanuts, foods containing them, or foods that came in contact with them
- Touching peanuts
- Inhaling particles containing peanuts (eg, peanut flour)
- Hives (redness or swelling of the skin)
- Itching or tingling of the mouth and throat
- Stomach cramps
- Shortness of breath or wheezing
- Chest tightness
- Runny or stuffy nose
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- Closing of airways or swelling of throat (making it very hard to breathe)
- Severe drop in blood pressure
- Very fast pulse
- Loss of consciousness
- Ask about your symptoms
- Take your medical history
- Do a physical exam
- Skin prick test—The doctor will place a small amount of food particles on your forearm or back. He will then prick your skin with a needle to allow the particles to enter your skin. If your skin reacts (eg, develop a bump), then that may be a sign that you are allergic to that particular food.
- Blood test—The doctor will take a sample of blood from you. The blood will be tested for an antibody called immunoglobulin E (IgE). IgE is a type of protein that the body makes when it is exposed to something to which it is allergic.
- Avoid peanuts, peanut-containing products, and foods that were exposed to peanuts. For instance, when placing an order at a restaurant, ask the server if the dish contains peanuts or is cooked with items (eg, sauces or oils) that may contain the nut.
- Read food labels as well as other labels (eg, medicine, make-up, face cream labels). You never know what items may contain peanuts.
- Ice cream
- Energy bars
- Salad dressing
- Chocolate candies
- Nut butters and oils
- Sauces and gravies
- Vegetarian food products (eg, veggie burgers)
American Academy of Allergy, Asthma, and Immunology http://www.aaaai.org/
Food Allergy and Anaphylaxis Network http://www.foodallergy.org/
Allergy Asthma Information Association http://aaia.ca/
Calgary Allergy Network http://www.calgaryallergy.ca/
Lee CW, Sheffer AL. Peanut allergy. Allergy Asthma Proc. 2003;24(4):259-264.
Mayo Clinic Staff. Peanut allergy. Mayo Clinic website. Available at: http://www.mayoclinic.com/health/peanut-allergy/DS00710 . Updated August 23, 2010. Accessed August 24, 2011.
Nut and peanut allergy. KidsHealth website. Available at: http://kidshealth.org/kid/stay%5Fhealthy/food/nut%5Fallergy.html# . Updated August 2008. Accessed August 24, 2011.
Peanut allergy. American College of Allergy, Asthma, and Immunology website. Available at: http://www.acaai.org/allergist/allergies/Types/food-allergies/types/Pages/peanut-allergy.aspx . Accessed August 24, 2011.
Peanut allergy. Asthma and Allergy Foundation of America website. Available at: http://www.aafa.org/display.cfm?id=9&sub=20&cont=517 . Updated 2005. Accessed August 24, 2011.
Peanut allergy. The Food Allergy and Anaphylaxis Network website. Available at: http://www.foodallergy.org/page/peanut-allergy . Updated August 18, 2011. Accessed August 24, 2011.
- Reviewer: Marcin Chwistek, MD
- Review Date: 09/2013 -
- Update Date: 09/30/2013 -