The answer to fire ant swarms is that they are caused by the presence of a fire ant colony in or near your home. Symptoms include seeing large numbers of ants swarming, especially after rain, and finding mounds of dirt in your yard. Solutions include using baits or contact insecticides to treat the colony, but it's best to call a professional pest control technician for severe infestations.
Fire ants are aggressive and can sting repeatedly, causing painful bites. Trying to DIY fire ant control can be risky, especially for large swarms. A professional pest control expert has the right products and equipment to safely and effectively eliminate the colony. They can also provide advice on preventing future infestations.