The only sure way to prevent an allergic reaction to shellfish is to avoid shellfish. But despite your best efforts, you may come into contact with shellfish.
Your doctor may instruct you to treat a mild allergic reaction to shellfish, with medications such as antihistamines to reduce signs and symptoms, such as rash and itchiness.
If you have a severe allergic reaction to shellfish (anaphylaxis), you'll likely need an emergency injection of epinephrine (adrenaline). If you're at risk of having a severe reaction, carry injectable epinephrine (EpiPen, Auvi-Q, others) with you at all times. If you're at risk for anaphylaxis to shellfish, your doctor may instruct you to administer epinephrine even at the first sign of an allergic reaction. After you use epinephrine, seek emergency medical care.
July 12, 2014
- Sicherer SH. Seafood allergies: Fish and shellfish. http://www.uptodate.com/home. Accessed March 27, 2014.
- Anaphylaxis. American Academy of Allergy, Asthma & Immunology. http://www.aaaai.org/conditions-and-treatments/allergies/anaphylaxis.aspx. Accessed March 26, 2014.
- Shellfish allergy is not a shell game. American Academy of Allergy, Asthma & Immunology. http://www.aaaai.org/conditions-and-treatments/library/allergy-library/shellfish-allergy-can-be-dangerous.aspx. Accessed March 28, 2014.
- Lopata AL, et al. Shellfish allergy. Clinical & Experimental Allergy. 2010;40: 850.
- Wasserman S, et al. Food allergy. Allergy, Asthma & Clinical Immunology. 2011;7(suppl):S7.
- Shellfish allergy. American College of Allergy, Asthma and Immunology. http://www.acaai.org/allergist/allergies/Types/food-allergies/types/Pages/shellfish-allergy.aspx. Accessed March 27, 2014.
- Guidance for industry: Questions and answers regarding food allergens, including the Food Allergen and Labeling Consumer Protection Act of 2004 (Edition 4); final guidance. http://www.fda.gov/food/guidanceregulation/guidancedocumentsregulatoryinformation/allergens/ucm059116.htm. March 30, 2014.
- Food allergies. Asthma and Allergy Foundation of America. https://www.aafa.org/display.cfm?id=9&sub=20&cont=286. Accessed March 30, 2014.