Joni's fine today. And she was comfortable by bedtime last night (Tks for asking!)
We repeated the cold water foot soak a couple of more times then soaked a cotton ball in bactine and went all over her foot with it. She didn't lick or chew her foot anymore after that so not sure if it was the soak or bactine that did the trick. Did not use any Benadryl. The conflicting reports I read on Benadryl spooked me so I was glad I didn't feel it necessary to use.
I wish I had titled this "antbite" since just "ant" is too short to retrieve results. So am adding this in case anyone else needs a quick search in the future! Searching for "ant bite" gets you tons of just "bite" results.