Get Your Dog Care Questions Answered by Experts
First, don't give advil. Dogs cannot tolerate it and it will cause problems. Coated aspirin is the only thing that you can give at home as a fever reliever/pain reducer.
You should change her to a diet of boiled chicken and rice only for the next couple of days. As the diarrhea subsides, start to mix her own food back in.
If there is no improvment, you should see your vet. She may have contracted an illness from the standing water.
Let me know if you have more questions.