Day 3 with parvo: Any advice/tips appreciated!?

I don't think there are any remedies that are successful. I think the only way to cure it is if you caught it early then maybe. But to be honest I think you should just let nature take its course. I had a dog with parvo and we spent more than $2000 dollars at the vet for him and nothing worked. The vet told use dog who get parvo will most likely die the majority of the time.