The pedialyte baths will give the frog a little added energy in the form of electrolytes, which will soak through it's skin.
If it hasn't eaten by day 5, then I would begin administering the baths.
I recieved a severely stressed cobalt tinc through the mail one time, and he didn't seem to eat for approximately 2 weeks. He showed no interest in food, and would move only occasionaly. At around the end of the first week, I started giving him baths 2-3 times a day every day. About a week later, it seemed he had some sort of "awakening" and began eating a ton of flies and acting normally. Now he's a pretty prolific breeder. So I would say give him a couple more days and then start the baths.
In the meantime, just make sure that the humidity is very high, and that there are enough flies in the enclosure where the frog doesn't have to search long to find one if it feels the need to eat. Don't put so many in to the point that the flies are crawling all over the frog, since that can add even more stress.
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Randy