Anaphylaxis is a severe, immediate allergic reaction that can be life-threatening, but the symptoms aren't always as obvious and dramatic as what we see in the movies. As one mom's now viral Facebook ...

Anaphylaxis is an extreme and severe allergic reaction. The whole body is affected, often within minutes of exposure to the substance which causes the allergic reaction (allergen) but sometimes after ...

Biphasic anaphylaxis is a second anaphylactic reaction after successful treatment, without new allergen exposure. It can occur up to 72 hours later, often peaking within 8 to 11 hours. Symptoms can ...

Anaphylaxis (or "anaphylactic shock") is a life-threatening allergic reaction that needs to be treated right away. If you have an anaphylactic reaction, you need a dose of epinephrine (adrenaline) as ...

Anaphylaxis is a severe allergic reaction that can quickly become life threatening. It can affect breathing, digestion, and circulation within seconds of exposure. Symptoms can include wheezing, chest ...