Well, there is a big difference between "work" and work. If you mean clearing clinical symptoms (the majority of cases I see, however, do not show any clinical signs at all!!) there are plenty of treatments. However, if it comes to completely eliminating the fungus (which should be the goal), one should test the animals after treatment. Just relying on a treatment schedule could produce a false feeling of security.
I would really not recommend "treating" all new animals, if it were only for possible toxic side effects (also long term: eg fertility, mind that virtually nothing is known concerning long term effects; we do know however that eg amphibian larvae are exceptionally sensitive to toxic side effects of some antifungal drugs). Besides, one could induce acquired antimycotic resistance and environmental pollution with antimycotics (flushing treatment bathing solutions through the drain) and when you did not test, there is absolutely no guarantee that your animals are free.
I don't know the situation in the USA but in Europe, we all should be aware that our animals can be infected but we should be especially aware that the dendrobatid frogs are at the moment the main risk.
By the way, as I proposed in a former message, testing of tank water is NOT a reliable method to test the chytrid status of a terrarium.
We are in the process of publishing our results. I will post the pdf when available on this forum.