Low blood pressure (hypotension) can be a sign of good health or of a life-threatening condition. Find out more about hypotension's causes and treatment options.
Find out what causes different types of abdominal pain.
Anaphylaxis is the most serious type of allergic reaction. It often occurs rapidly after exposure to an allergen and may be life-threatening.
Hives and angioedema — Comprehensive overview covers symptoms, causes, treatment of these common allergic disorders.
Sick to your stomach? Nausea and vomiting usually pass quickly but sometimes result from long-term or serious conditions.
Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.
Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.
Tests and diagnosis
Itching, sneezing and swelling: Find out what's causing your allergy symptoms.
Jan. 26, 2013
- Food allergy: An overview. National Institute of Allergy and Infectious Diseases. http://www.niaid.nih.gov/links_policies/_layouts/niaid.internet.forms/publicationorders.aspx. Accessed July 14, 2011.
- Kurowski K, et al. Food allergies: Detection and management. American Family Physician. 2008;77:1678.
- Wang J, et al. Egg allergy: Clinical features and diagnosis. http://www.uptodate.com/home/index.html. Accessed July 15, 2011.
- Anaphylaxis. Asthma and Allergy Foundation of America. http://www.aafa.org/print.cfm?id=9&sub=23&cont=324. Accessed July 14, 2011.
- Guidelines for the diagnosis and management of food allergy in the United States: Summary of the NIAID-sponsored expert panel report. National Institute of Allergy and Allergic Diseases. http://www.niaid.nih.gov/topics/foodAllergy/clinical/Pages/default.aspx. Accessed July 15, 2011.
- Wang J, et al. Egg allergy: Management. http://www.uptodate.com/home/index.html. Accessed July 15, 2011.
- Egg allergy. Asthma and Allergy Foundation of America. http://www.aafa.org/print.cfm?id=9&sub=20&cont=523. Accessed July 14, 2011.
- Flu vaccine and egg allergy. American College of Allergy, Asthma and Immunology. http://www.acaai.org/public/advice/Fluvaccine_eggallergy.htm. Accessed July 14, 2011.
- FDA approves first seasonal influenza vaccine manufactured using cell culture technology. U.S. Food and Drug Administration. http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm328982.htm. Accessed Nov. 20, 2012.