The official treatment for a jellyfish sting isn't what you're thinking KTVU FOX 2 News Published June 19, 2017 12:41 PM PDT Share Copy Link Email Facebook Twitter LinkedIn Reddit Published June 19, 2017 12:41 PM PDT LOS ANGELES - So pack some vinegar and tweezers in your beach tote-- and never again add insult to injury after a jellyfish attack.