If a family member is found to have acute laryngeal oedema, it is recommended that they seek medical attention as soon as possible. If they are already having difficulty breathing, they need to be placed in a flat position, with their collar and trousers loosened and their upper body elevated; if they are unconscious, they should place their head in a lateral position and lift their jaw to prevent the tongue from falling back and blocking the airway. Also, call 120 urgently for urgent medical attention.