Sometimes the medications (especially antibiotics) they need to help them can also make them nauseous….so, I might mention it to the vet (have him call you back when he has a minute). He may want to make a change in the prescribed medication.
I would continue to work with your vet, but if you are not seeing improvement after a while, consider consulting an Internal Medicine Specialist.
It’s like our care nowadays, you go to your PCP, but if it’s serious you get a referral to a specialist.
BTW: Has the dog had a senior workup? Lab work including r/o pancreatitis? It’s important, something else could be going on….
I agree about adding water/soaking kibble. Adequate hydration is helpful in relieving nausea.
