Anaphylaxis (an-a-˜-LAK-sis) is a serious allergic reaction that comes on quickly and has the potential to become life-threatening. The most common anaphylactic reactions are to foods, venom, medications, and latex. Anaphylaxis signs and symptoms that may occur alone (*) or in any combination after exposure to an allergen include: MOUTH:. Common symptoms of an allergic reaction include: Sneezing and itchy, stuffy or runny nose (allergic rhinitis) Itch around the nose, mouth, eyes or roof of mouth; Itchy, red, watery or swollen eyes (allergic conjunctivitis) Facial swelling, swollen lips, tongue (angioedema) Itchy skin; Skin rashes (allergic contact dermatitis, eczema)
The most common allergens that can cause anaphylaxis are foods such as peanuts, tree nuts, milk, eggs, shellfish, fish and sesame seeds, although many other foods have been known to trigger it.Some people react even to tiny amounts of food. Other causes include wasp or bee stings, latex (natural rubber latex) and medicines.In some people, exercise can trigger anaphylaxis - either on its own.. Signs and symptoms of a serious allergic reaction are usually classed as anaphylaxis, causing changes to a person's breathing, heart rate & blood pressure. 0. Donate. Donate.. Most healthcare professionals consider an allergic reaction to be anaphylaxis when it involves difficulty in breathing or affects the heart rhythm or blood pressure.