Anaphylaxis (an-a-fi-LAK-sis) is a severe allergic reaction that is rapid in onset and can be life-threatening. The most common anaphylactic reactions are to foods, insect stings, medications and latex. Anaphylaxis is the most severe form of allergic reaction, often affecting several parts of the body, including either breathing difficulties, a sudden drop in blood pressure, … Continue reading What is anaphylaxis?