hi, thanks for your replies!
As a matter of fact, in France there are not so many labs that can perform Chytrid tests, as they usually imply use of PCR to be able to detect the fungus's DNA...

As far as I know, at least for caudates (but it seems to be quite different with frogs) itraconazole baths are said to be harmless...

And I'm not the kind of guy (well, girl) to give medications without a vet's advice nor "just in case"... So, if with frogs the con's are greater than the pro's, then I think I'll have the frog tested before doing anything. So, I'm very interested in the joshsfrogs test kit, but do you know if it is relevant for me to use, since I guess it will take the sample more than 2 business days to arrive to the lab: will the test still be reliable? If it is DNA-based, then yes, because DNA is a strong organic stuff...

I'll try to get some info about that on joshsfrogs website (thanks again for the link !) but if someone already know the answer, fill free to keep me posted...
Thanks and regards,
Stéphanie