I was on a flight once and a young passenger had an allergic attack. They asked all the passengers if anyone had any benadryl. I dumped my purse out looking, as I usually had some, but didn’t. We made the flight very fast, and descended so fast my legs went up in the air. The ambulance was waiting when we arrived. Hope the young o e was ok, but I try to keep fresh aspirin and benadryl on me from now on.