Hi Good Day, I don't know if there are posts about dog motion sickness, but I am new to Dog world. We went to the vet, for his vaccine, we don't have a car, we use taxi/cab, returning home, before I even open the cab's door, he suddenly vomited. I don't know if its the motion sickness or its because of the vaccine + deworming. All the food he had eaten that morning were all over my shorts. Because I love the dog so much I even clean the cab. I really don't know what to do. The vet just said to observe the dog if he continues to vomit. This is his third ride though, before he did not vomit. Before it was even quite long a ride compared to the vet. Lord Elrond is a 2 Months old Golden Retriever x Japanese Spitz.