Call the emergency services.
Today someone called 999 for an ambulance because they got stung by a nettle and their foot was itching. An adult man with no other symptoms, just an itchy foot - 2 mins after being stung by one stray garden nettle.
Yesterday a school receptionist called NHS Direct and not 999 because a 4 year old reception child was having severe difficulty breathing and had forgotten his asthma pump! They put her through to 999 after assessing him and realising it was very life threatening!
AIBU in thinking some people really need to engage their brain?!?