Urine infection is probably from adrenal, either way needs to see a vet.
If you don't have one that takes ferrets, I know someone will send you
the web site that list ferret friendly vets in CA.
 
Go to www.ferretdoctor.com and www.ferretcentral.org to read on adrenal
disease, and your options.
 
Good luck
 
Patty
[Posted in FML issue 3421]