Hmm...there's something about the term "starve" that would make me think about seeking another vet. It's not an accepted veterinary/medical term for "fasting".
What tests did the vet run anyhow? Depending on the strain, Clostridium responds to different antibiotics and is resistant to others:
http://www.sciencedirect.com/science?_ob...6836b099c6bc91c
For starters, Probiotics would appear to be a reasonable treatment course for this pup that you could start asap.
But honestly, if this were my very young puppy with diarrhea, I'd be "pumping him full of drugs" asap. Salmonella from raw *organic* eggs is unlikely, but this little guy needs to start eating and retaining his nutrients. Eggs aren't going to do it.
I'm not a big fan of drugs. I like using natural approaches whenever possible. But this little guy doesn't have a lot of reserves. I'd ask the vet a lot of questions about what tests he's run. I'd print up article that I linked to and ask the vet about what strain of Clostridium your dog has to ensure that the vet is prescribing the right ones. If he can't answer my questions, I'd look for someone who can.
You have the pup now. No sense looking backward. But I think it'd be helpful to start asking hard questions about what's going on now -- which means having as much information as you possibly can, asking questions when you don't have that information, and knowing when traditional medicine is needed asap.
It sounds like you're a young adult? Sometimes, people take advantage of that, maybe push you around a little, til you stand up and say "hey. I'm not standing for this anymore." And Ty needs you to stand up for him now.
We'll try to give you information when we can to help you do that.