Hi,
I just wanted to say something that might make you feel better. Like Brian mentioned I commend the breeder for caring enough to take-over its care. Please, no disrespect to your vet. However, the breeder may have a real advantage in this situation; and it is very possible for this frog to make a full recovery. The breeders are very use to treating and handling their frogs where as the vet has many other responsibilities throughout any given day; often relying on staff ( inexperienced w/ herps ) to help with treatments. A breeder in this situation will , personally, be much more involved with this very important day to day care ( and observation) of the frog. It take patience, TIME and a lot of experience with this particular species. The improvements in their illnesses can occur painstakingly slow.

i.e. I had a black eyed tree frog that was ill for 7 weeks. ( That handsome little guy in my avatar ) For 7 weeks this frog did not eat! It needed daily soaks to stay hydrated, force feeding, special supplemental feedings, antibiotics, and to make matters worse toward the end of the 7 weeks medication for parasites -not once , but twice ! So, just imagine a vet's helper doing this.

Heatheranne, has had similar experiences. She has 'cured' red eyed tree frogs that would have been doomed otherwise. It took months !

Enjoy your new frog, keep things really clean, temp and humidity parameters ( if not perfect ) at least consistent , provide a day night cycle, don't handle it ( they don't like us ... we stress them out ! ) , feed him well....and you're good to go.

Lynn