My poor dog is really prone to upset stomachs where he spends a couple of days vomiting until there is nothing left in his stomach. Lives on water for about a week then gradually recovers. It always reoccurs though. I have been to the vet who said it was a food allergy and prescribed hypoallergenic food. He still gets sick on this and he is so bored with it ppor thing. He has had probiotics in a clay mix which do seem to help and I was thinking of asking for these to be prescribed on a permanent basis. Has anyone had a dog with anything similar and, if so, did anything help? I was looking at slippery elm compound online as a possibility. He was really heroic overnight. Had obviously spent most of the night vomiting but had managed to keep it all on the doormat as he thought that was the most acceptable place to do it because I could take it outside (the rest of the floor was tiled so that would have been easier but he was doing his best)...