Tips to Reduce or Eliminate Vomiting. Put Your Dog on a 24-hour Fast. Just like the human gastrointestinal tract is irritated by something that shouldn’t have been… Lavender oil – For relief of nausea leading to car sickness in dogs, put lavender oil on a cotton ball and leave it in an area so that your dog can breathe the scent… Ice Cubes. When your dog is vomiting or has diarrhea, you want them to stay hydrated, but giving him too much water may make his stomach even more…
