Anaphylaxis. The most severe reaction that can occur after repeated exposure to something you are allergic to is called anaphylaxis. This rare but sudden condition causes itchy welts (hives), followed by wheezing, shortness of breath, and occasionally, swelling of the tongue or throat. Without treatment, swelling of the tongue or throat can sometimes worsen and block the airway.
DEATH. Symptoms from an allergic reaction can range from an annoying symptoms such as itch or irritation to death.
Unfortunately, death. In rare cases, allergic reactions can be fatal. This may happen if the tongue and/or throat swell up and block off one's breathing. Death may also occur if the allergic reaction drops the blood pressure too low for too long, destroys the majority of one's blood cells or platelets, or severely damages the skin all over the body (mimicking a large burn).
Anaphylaxis. A true, severe allergic reaction can be life threatening. An allergen can trigger what is called an anaphylactic reaction, causing rash, wheezing, low blood pressure and other serious symptoms. Most "allergies" however, are much less severe. If you have concerns about possible allergies in your child, ask your pediatrician.
Anaphylaxis. Anaphylaxis is very dangerous, because the airway can swell up and close off. Anyone with a history of a severe food allergy (mouth or lip swelling) should have two epinephine ("epi") pens with him/her at all times. There are also blood tests that can help predict which foods or exposures could trigger a severe allergic reaction.
Shock and death. The most severe allergic reaction, so called anaphylaxis, involve shortness of breath/wheezing, hypotension, urticarial rash (hives), and swelling of vocal cords. Anaphylactic reaction can be deadly if an appropriate treatment is not rendered in time. Peanut and bee venom allergy are good examples.
Anaphylaxis. Anaphylaxis is the most severe type of allergic reaction. It results in swelling of areas within the mouth, throat, and upper airways, which can cause severe difficulty in breathing. Anaphylaxis can also have GI complications as well. Doctors give Epinephrine to families where anaphylaxis is a risk. These are commonly called 'epi-pens'.