Almost fifty years ago, while living in San Antonio, we went for a family walk after dinner. My then 5 year old son ran on ahead of us, but stopped at the corner and waited for us so that we would all cross the street together. Suddenly he started screaming. In the dark he had not seen that he was standing on a fire ant mound. I scooped him up in my arms and started running back to our house. I turned on the shower and with both of us still dressed stepped into the water to get the ants off of him. Truthfully I thought that his screaming and reaction were because he was just a little boy who couldn't handle pain. Then suddenly it felt like someone had put a lit cigarette against my neck, and then again on my back and then more of the same. The ants that had been on him had crawled onto me and were biting me, and for the first time realized that my little boy was not over reacting. Those bites were really painful! It took two days before the swelling from the bites went down, for both of us, and made me very vigilant to watching for fire ant mounds.
FWIW, I found a solution in those days to fire ant infestations in my backyard. I would pour a gallon or so of gasoline on the mound and light it us. I would first wet down the area around the mound so that the fire would not spread to the rest of my yard. It worked to get the fire ants to give up the mound and move, hopefully to a neighbor's yard rather than mine. I'm glad I no longer live in an area where I have to be concerned with fire ants, although I have read that they are moving slowly northward and eventually will be most everywhere in the U.S.
FWIW, I found a solution in those days to fire ant infestations in my backyard. I would pour a gallon or so of gasoline on the mound and light it us. I would first wet down the area around the mound so that the fire would not spread to the rest of my yard. It worked to get the fire ants to give up the mound and move, hopefully to a neighbor's yard rather than mine. I'm glad I no longer live in an area where I have to be concerned with fire ants, although I have read that they are moving slowly northward and eventually will be most everywhere in the U.S.