There are a lot of species of bees. Only honeybees die when they sting.

Most species of wasps aren't aggressive either.

Most anything will sting, or bite, or defend itself however it can, when it's minding its own business flying around and you plow into it at 20 mph (or 10, or even 6, like the bee that got me on the thigh in the middle of a big climb ).

I don't think it works on hymenoptera stings, but heat will destroy the stuff in a mosquito's saliva that people are allergic to. If you can get a heating pad (as hot as you can stand without burning) or a towel soaked in boiling water on it within 5-10 minutes of being bitten, it won't leave the huge welt.