Unfortunately, this type of weather brings out nasty, stinging, red ants. I call them all Fire Ants, but an expert of mine corrected me and gave me the correct description. I have forgotten the actual name of these tiny red ants that sting so badly, but all I want to do is to get them out of here.
I apply Amdro twice a season, once after the rainy season ends (which is right now), and again when everything is growing strong, in late spring. I always keep plenty on hand. If you've run out, go to Home Depot and get some more. I'll come along with you, I could some more myself!