Anaphylaxis is a medical condition describing people with severe, life threatening allergies. Reactions are rapid in onset and may cause death without immediate treatment. Signs of an anaphylactic reaction include difficulty with breathing; swollen lips, eyes, tongue and/or throat; itchy rash, blotches and welts; stomach pains and vomiting; and light-headedness and fainting due to a drop in blood pressure.
(ed. – Yes, these pictures are disturbing; however, the reality of a person suffering an anaphylactic reaction is disturbing.)