Go to a different vet. A lot of vets won't do a whole lot. There isn't any cure for parvo. You just have to make sure your dog stays hydrated and weather through it. There really isn't a whole lot your vet can do. But go to a different vet anyway. They should tell you what will help.
Make sure you are getting liquids in your dog at least every 2 hours. Chicken broth, raw hamburger, white rice...
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