Keep them hydrated!!! My dogs had parvo and I stayed up giving them Gatorade and Pedialyte 4 times every hour with a syringe. Had some amoxicillin and mixed some in to said Gatorade and gave them half a 50mg tramadol for pain. It's going to be tough, you're going to cry and get angry but remember, you are their only hope for survival so do not give up. Good luck!
You would have to call around and check but one of the main things to remember with parvo is to keep animal well hydrated try sugar water, give water with a medicine syringe if need be but keep hydrated. Definitely call around to check with a vet on medicine
Thanks! Your answer is awaiting moderation.