How a vinegar is use to treat a wasp sting?

A wasp sting is alkali, so if you put an alkali on it, it would not work. To neutralise the sting, you would have to use something acidic, like vinegar, also known as acetic acid.

If you want to know more, then I can tell you about bee stings. Bee stings are acidic, so you shouldn't put something acidic on it. Try something alkali, like baking soda, or ammonia. That should help to neutralise the bee sting.

Hope that helps x