Hi kissedmissed! There is no 'cure' from parvo other than giving IV fluid so the dog doesn't dehydrate while they fight the disease. Many dogs die from parvo because of dehydration and blood loss. I personally have had a dog that survived it with the help of our vet. Here is a good site that has very detailed information about the disease. Good luck!
I had a puppy live through parvo. She had to spend a few days on an IV while her body fought it off. The poor thing had coccidian as well. One is a virus (parvo) and the other is bacterial and both effect the intestines. She lost some weight but in about a weeks time she was back to bouncing around.