Risk factors
By Mayo Clinic staffYou may be at increased risk of developing an allergy if you:
- Have a family history of asthma or allergies. You're at increased risk of allergies if you have family members with asthma or allergies such as hay fever, hives or eczema.
- Are a child. Although you can become allergic to something at any age, children are more likely to develop an allergy than are adults. Children sometimes outgrow allergic conditions as they get older. However, it's not uncommon for allergies to go away and then come back sometime in the future.
- Have asthma or an allergic condition. Having asthma increases your risk of developing an allergy. Also, having one type of allergic condition makes you more likely to be allergic to something else.
References
- Frequently asked questions. American College of Allergy, Asthma & Immunology. http://www.acaai.org/patients/faq/Pages/default.aspx. Accessed Nov. 3, 2010.
- Tips to remember: What is an allergic reaction? American Academy of Allergy, Asthma & Immunology. http://www.aaaai.org/patients/publicedmat/tips/whatisallergicreaction.stm. Accessed Nov. 3, 2010.
- Wayt TM. Anaphylaxis. In: Ferri FF. Ferri's Clinical Advisor 2011: Instant Diagnosis and Treatment. Philadelphia, Pa.: Mosby Elsevier; 2011. http://www.mdconsult.com/books/page.do?sid=1079270789&eid=4-u1.0-B978-0-323-05610-6..00010-X--sc0170&isbn=978-0-323-05610-6&type=bookPage§ionEid=4-u1.0-B978-0-323-05610-6..00010-X--sc0170&uniqId=225503130-3. Accessed Nov. 3, 2010.
- Atkins D, et al. Diagnosis of allergic disease. In: Kliegman RM, et al. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/224902915-6/0/1608/434.html?tocnode=54478103&fromURL=434.html#4-u1.0-B978-1-4160-2450-7..50142-0_3366. Accessed Nov. 3, 2010.
- Tips to remember: Allergy shots. American Academy of Allergy, Asthma & Immunology. http://www.aaaai.org/patients/publicedmat/tips/whatareallergyshots.stm. Accessed Nov. 3, 2010. Accessed Nov. 3, 2010.
- Tips to remember: Asthma and allergy medications. American Academy of Allergy, Asthma & Immunology. http://www.aaaai.org/patients/publicedmat/tips/asthmaallergymedications.stm. Accessed Nov. 3, 2010.
- Allergy. Mitchell G, et al. In: Rakel RE. Rakel: Textbook of Family Medicine. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/225194068-12/1078164908/1481/288.html#4-u1.0-B978-1-4160-2467-5..50028-2--cesec19_1317. Accessed Nov. 3, 2010.
- Engler RJ, et al. Complementary and alternative medicine for the allergist-immunologist: Where do I start? The Journal of Allergy and Clinical Immunology. 2009;123:309.
- DeShazo RD, et al. Pharmacotherapy of allergic rhinitis. http://www.uptodate.com/home/index.html. Accessed Nov. 3, 2010.
- Li JT (expert opinion). Mayo Clinic, Rochester, Minn. Nov. 16, 2010.
- Naegleria FAQs. Centers for Disease Control and Prevention. http://www.cdc.gov/parasites/naegleria/faqs.html. Accessed Dec. 30, 2011.

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