Anaphylaxis is a life-threatening allergic reaction that can occur quickly (as fast as within a couple of minutes).



Symptoms of a life-threatening allergic reaction (anaphylaxis) vary, but can include hives, itching, flushing, and swelling of the lips, tongue, and roof of mouth. The airway is often affected, resulting in tightness of the throat, chest tightness and difficulty breathing. These reactions can also be accompanied by chest pain, low blood pressure, dizziness and headaches.



A life-threatening allergic reaction (anaphylaxis) can be caused by a number of triggers, including but not limited to certain foods, stinging and biting insects, medications, and latex.



It is important for people with allergies, a history of anaphylactic reactions, or suspected anaphylactic reactions to be formally reviewed by a doctor specializing in treating allergies. Parents and caretakers of children with allergies should also be trained to recognize symptoms of anaphylaxis and receive information on strict dietary avoidance.