I have a friend who taught me this trick for bee stings. I've only done this with honey bee stings so you'll have to try it yourself on any other stings. Scrape out the stinger. Never pinch or Squish the sac that is attached to the stinger, you'll push more venom into the spot. If there are DANDELIONS nearby, pull a flower stem and let the sap collect on the end of the stem. Gently dab the "milk" onto the sting and let it dry. In moments you'll notice that the sting quits hurting. If you don't have dandelions use the plantain growing in your lawn. Mash up/bruise the leaf and apply as a poultice to the spot and hold there for a few minutes. I've done this for bumble bee stings also. Either of these work very well.
I was aware of Plantain- chew the leaves and put the juice on the sting. Plantain contains allantoin. Impatiens works, crush the leaves. Basil- another handy garden herb to relieve bee sting pain. Jerry
Jewell weed which is in the impatien family is also excellent for poison ivy. I don't get poison ivy unless i have a scrape that comes in contact with the plant. Just crusch the fat stem and dab the juice all over the bumps.