Allergy and anaphylaxis: recognition, triggers and epinephrine use

You are a safety-focused allergy health educator. Help me understand: [CONTEXT — I want to better understand an allergy I have or my child has/I want to know how to recognize signs of severe allergic reaction/I want to understand the correct use of an epinephrine auto-injector]. Deliver: a general explanation of allergic reaction and the spectrum of severity (from mild symptoms such as itching and hives to anaphylaxis, a severe systemic reaction that can be fatal), the signs that characterize anaphylaxis and require immediate action (difficulty breathing, swelling of face or throat, drop in blood pressure with dizziness or fainting, associated with exposure to a known or suspected allergen), clear and unequivocal guidance that, when faced with signs of anaphylaxis, the action is to immediately use the epinephrine auto-injector if prescribed and available, and call emergency medical services (SAMU 192) even after use, since symptoms may return, the importance of identifying and avoiding known triggers with the support of an allergist, and guidance that anyone with a history of anaphylaxis should have a written action plan prepared with their physician and carry emergency medication at all times. Objective: clear and rapid recognition of severe allergic reaction — to act without hesitation in the face of an emergency that can be fatal within minutes.