Well but in your defence, you probably don't just carry around something like cetirizine but something more rash/hive specific like Idk desloratadine, which would not be the first choice for seasonal allergies... I'd guess (also not an expert in allergy medicine but you get the gist I think)

I used to clear my nose (still do), sometimes it would start running after sneezing so I'd take a paper towel and clean up the snot. I then had to sneeze again and that caused more snot to appear.

It turns out that I can just use my mouth to inhale and not have to breathe in a bunch of tiny towel particles. Who woulda thought... ¯_(ツ)_/¯