A
severe, and sometimes life-threatening allergic reaction to an
allergen. These allergens can include a substance injected into the
skin or something ingested (eg. food or medication). The first
indications of anaphylaxis include feelings of warmth, flushing,
redness of the skin or a tingling sensation in the mouth. Additional
symptoms included feeling light headed, shortness of breadth, stomach
cramps, vomiting, diarrhea, severe sneezing, and anxiety. Without
immediate treatment, anaphylaxis can be fatal. The severe symptoms of
anaphylaxis can be quickly treated with an injection of epinephrine and
antihistimines.