We used to get treated with a blue bag! Probably most people will not even know what one of those is, but the ones we used to get here were were like a piece of pool cue chalk used to add to the washing to get your clothes nice and white. I haven't looked in the supermarket lately to see if they still sell them or not. As I remember the swelling never got too bad when a liberal coating of "blue" was applied, but maybe I don't react too badly to stings and/or the blue was a cunning ploy to pacify my screaming!

...it's a bit of a novelty to paint various body parts blue! I must research this further to see what they put in those little blue packages that might help with stings.
The first time I was stung by a European Wasp, I thought that I was going to die, then I became afraid that I wasn't going to die

, but seriously, that was not all that pleasant and the little darling had a pretty good go at me before I got her out of my jacket. The recommended treatment was a few pain killers and half an onion applied to the affected area. Maybe the onion does something, but it stil hurts

The onion may also help with bee stings. The second wasp sting I got, I was pretty quick to get rid of the wasp from my arm (benefit of experience) and the effects were relatively insignificant.
I must say that the Vagisil idea is brilliant, I'm going now to check the medicine cabinet and the cupboard under the bathroom cabinet for supplies. Thanks for the hint.