Unlike bees, a yellow jacket will not leave its stinger behind once you've been stung. As such, you won't need to pull out the stinger as you might with a bee. Systemic (whole-body) allergic ...

Wasps, which include yellow jackets and hornets, can be aggressive and sting multiple times. To treat a wasp sting, wash it with soap and water, then reduce swelling with ice and antihistamines.