There should be more working components,
the one that is the safest would be Itraconazole, as told me by different vets and researchers on it.
Chloramphenicol is another component tought to work, but at the date i had contact on it this was still being tested.

Lamisil (terbinafine) treatment did not work for me,
i treated 2 frogs with lamisil and 2 with Itracanozole so far.
My experience told me that Lamisil did not work for me.
So i also heard from others that used it.

It is a method created by a hobbyist, just trying to find something for chytrid.
The others are lab tested,
Could be wrong about it, but that is what the researchers from the Itraconazole treatment told me.

The price i think for Itranconazole is a price that let people check if it is realy neccesary, in my opinion not a bad choice
In Holland we did a test, we randomly tested terrarium frogs to see how bad the infection was in the domestic population.
out of 78 frogs (people) 8 were found to have the Fungi.
I don't know if the percentage in the US is higher but it might be that people are stressed out by the Chytrid so they start panicing and treathing against Chytrid without being sure the frogs have it or not.
In my opinion just find out what is wrong, and treat against the outcome.
Most of us are no vets, so making own diagnoses could be harmfull, even when the intenions are good.