What should you do if you are stung?
Wasps and hornets do not leave their sting in you, and so they can sting repeatedly. Honey bees can sting only once and will leave the sting (and venom sac plus some other parts) stuck in the skin at the sting site.
The sting, if present, should be removed right away since the venom can still be injected for up to a minute after the bee detaches from its sting.
Try removing the sting by scraping sideways with your fingernail, a credit card or other stiff card. Try not to squeeze the bee venom sac as that action will release more venom. However, you might have to use tweezers if the venom sac breaks off leaving the sting in the skin.
All stings hurt. A normal (or "localized") reaction to the venom from a sting is redness of the skin, swelling, severe itching (pruritis), and a burning or stabbing pain. The longer the sting is in the skin, the more will be the effect of the venom being injected. An application of ice (wrapped in a towel to prevent freezing the skin), anti-itch cream and/or an antihistamine pill can help reduce the effects of the sting.