Any kind of severe allergic reaction is going to ruin your week. If you're in anaphylactic shock, you don't just pop some antihistamines or an epi-pen and carry on with your day. And you certainly should not be moving around.

This happens in many shows. At least My Girl was more accurate.

The poster text in panel 4 is very much worth reading. I was going to type it out, but then I realised I shouldn't deprived people of the joy of reading it themselves.

It is much easier to read on the source website, though.