where they are very experienced in using Schulze/Christopher products to heal dogs with kidney disease - they use the same exact products/tinctures as for humans in most cases...as did Dr. Schulze and Dr. Christopher).
Then rub about 1/2 cup of tea along his spine, soak a cloth in the tea and wrap him up like a tortilla :) (I bet he's used to that kind of thing). Leave it on all night, or a few hours during the day, then take it off and make sure he's good & dry for awhile before doing it again.
Also, hot/cold therapy would be WONDERFUL for Foo Foo. I'd bet if you'd PM HummingbirdSage, she'd give you some good tips. I know she just helped/saved a Pom with kidney failure and did some hot/cold (or taught the owners how to). She might have some other tips, too :)
Like Dr. Christopher used to say (when folks asked him if he'd treat their animals): "We're good for man or beast!" :)
Healthiest of blessings (and a snuggle & scratch for Foo, too) -