I agree with the boiled chicken and white rice. Take your pup to the vet, you don't want it to continue. Plus, i'm sure the clean up has been an absolute joy! You might also want to wash any blankets the dog lays on, and wash the water and food bowls, that way if it is some sort of virus ( I have no idea) maybe you can kill the germs?? Keep us posted, and let us know what the vet says.