What are the near death signs of parvo and what else can I use to treat at home?

These are questions for your Vet, that's why he has a phone. Make a list of your questions and call. The vet tech at his office can probably answer all your quesitons.. Go on line and you will find lots of information. Keep him hydrated and even drop water in his mouth with a dropper. You can need to carry him out to the bathroom. Water needs to flow through his system. It will take a while to save him but you can do it. He needs quiet and rest and love and you have all he needs. If he is strong the meds will do the job.