Is this a recent development? I would recommend a thundershirt, but be aware you need to put it on the dog BEFORE the storm hits. Medication can also help.

Beyond that, I would work on desensitization with sounds.

Additionally, I’d like to add my Doberman was not sound averse until after her spay, and she slowly increased in her storm aversion. She went from a dog who would stand outside and glare at the sky for daring to make noise when she was intact to a dog who’d cower on her bed post-spay. It was bizarre. We worked on desensitization training with Youtube videos and the highest value treats I had – bits of medium-rare steak. It helped.

No chews will replace a proper dental cleaning at the vet. if you’re dealing with bad breath, in all likelihood your dog should be scheduled for a dental visit.

That said, my dog’s vet recommends OraVet dental chews to supplement oral cleanings.