Acting quickly after being stung by an insect can reduce your risk of a serious reaction.
First, remove stinging insects or their stingers. In most cases you can simply brush the insect away. You may need to pull fire ants off -- be sure to check for multiple ants and get rid of all of them.
If a bee has left a stinger in your skin, scrape it and the attached venom sac away with your fingernail. Don’t try to pick it off, or you could squeeze more venom into your skin.
If you have multiple stings -- particularly to your head or neck -- call your doctor right away.
If you carry an epinephrine auto injector (generic or Adrenaclick, Auvi-Q, EpiPen, Symjepi), give yourself a shot. Call 911 or have someone take you to an emergency room immediately, even if the shot worked.
Otherwise, you can start treatment on your own. Here's how: