The worst sting I had was when a bee had gotten in the car and I didn’t realize and put my bare foot on it! We were at the beginning of a vacation trip and my whole foot and ankle swelled up and really hurt! Had to get Benadryl but the pain and swelling lasted several days.
Last year I was stung twice in the garden when I was deadheading flowers. Both times I immediately grabbed a plantain (Plantago major) leaf and chewed it up and plastered it on. Within a minute the pain subsided and I had hardly any swelling or further pain!
I enjoy observing bees, hornets etc. and usually don’t have any issues with them.
The most incredible thing I ever observed was when a hornet got caught in a spider’s web on the side of my house. I cold hear it buzzing angrily and as I watched it managed to break free. It flew in a loop and came back and grabbed the spider and dropped to the table where I was sitting. It then proceeded to bite off the spider’s legs one by one and flew off with the helpless spider! I happened to have my camera and got pictures of this unbelievable occurrence!