How to kill ants? There are many ways to kill ants, I will tell you a simple way if your strapped for cash and need instant relief. This article will deal with Fire ants. Fire ants will actually do a lot of bodily harm. Some people have an allergic reaction to the bite of the fire ant and could even die from it. Even if you’re not allergic to the bite of the fire ant you can suffer a burning bite, and it hurts.