What are some signs of a severe allergic reaction (anaphylaxis)?

A severe allergic reaction, known as anaphylaxis, triggers a rapid and potentially life-threatening response in the body. Among the most critical signs of this condition are difficulty breathing and swelling of the face or throat. These symptoms occur as the body experiences a severe response to an allergen, leading to constricted airways and swelling in the throat, making it hard to breathe.

The swelling can also affect the face, lips, or tongue, which can further impede airflow and cause serious complications if not treated promptly. This combination of respiratory distress and facial swelling is a hallmark of anaphylaxis and necessitates immediate medical attention. Recognizing these symptoms is crucial for anyone who may encounter individuals with known allergies, allowing for swift action to be taken, such as using an epinephrine auto-injector and calling emergency services.