You just got stung by a wasp It still hurts but the sting is out what do you do?

You might disinfect with antibiotic, or peroxide; but otherwise there is little that needs to be done. Applying a dab of toothpaste, or a paste of water and baking soda reduces the pain of the sting. This works for mosquito bites as well.

Have somebody watch for signs of anaphylaxis.