here are some folk lore treatment that may work and some known to work.
this after you remove the stinger.
Meat tenderizer make it in to paste place on sting works very well!
next is tabacco the chewing kind leaf form, bruis it up i.e chew it a bit put it on the site, works ok.
cow dung won't even go there
baking soda works ok do as meat tenderizer. I works but marginal.
so there are some balms