Gracie, I hope you're feeling better by now
I was bitten several times when we lived in Ocala but...don't hate me...fire ant bites don't bother me and neither do mosquito or chiggar bites and poison ivy. I have no idea why but I'm o.k. with it! Now, those angry little hornets are another story.....but we won't go there! Whew....whelt city!!
As for dogs and fire ants here is my story...
We had a 3 pound Yorkie several years ago...he came in one morning and started rubbing his face along the base of the couch and the carpet.....I thought he was just rolling around like dogs do but I soon realized he wasn't. When he looked up my husband said he didn't look right, his face looked fat and not just fluffy....then his muzzle started looking bigger and fuller by the second....not his normal 1/2 inch long, narrow snout and button nose....I knew it was a matter of time before it could close his throat with the swelling. I threw my clothes on and called our vet while in the car. Thank God they were open that early! Luckily, his office wasn't too far from our house and he took us right in. He said he had been bitten in his nose by a fire ant, gave him 2 shots that stopped the swelling and reaction almost immediately and our little guy was fine
After that we decided to pour a concrete patio and set the fence poles in the concrete so we had a fenced concrete area he could go out on...that way I could see if there were any ants around before he went out.