[yorkietalkjilly]

Usually one dog doesn't cause another to panic unless he's attacked him and aggresses often. A new dog can make the current dog uneasy, allowing his natural fears of things such as thunderstorms or shiny floors, loud noises, etc. to set him off, kind of like when you have a new boss at work you are trying to figure out, your mood at home can be a little edgy. He probably heard something outside and the reverse sneezing was done from nerves. Some dogs reverse sneeze when there is a thunderstorm outside, for instance. Some RS for get attention.

I'd just distract him with the honey, chicken, whatever you want, to get him really distracted and work on his accepting the other dog. (I've personally used honey with dogs for 30 years & never had any issues with my rescues or my own pets but some dogs may be sensitive to it, as some are to karo or Nutrical [It gave my Jilly & a rescue pup diarrhea].) Honey is in some dog treats and dog food.

Once he's accepted his new "sibling", he'll probably be a little less unsettled but probably will still have his old fears. If he is afraid of strange or loud, sudden sounds, then you can start to desensitize him to odd sounds by forming a pleasant association in your dog whenever he hears odd sounds. Have a helper bang on the wall with a spoon and treat the dog with a nice turkey hot dog bit at the same moment. Do that for no longer than a few seconds and then stop, give another treat. You want to gently expose him to the sounds but not trigger a panic attack or make him think he's trapped with people who are going to keep making scary sounds so just a few sessions of the noise/concurrent treating with special treats of high value and then stop after about 3 or 4 episodes. Later in the day, you can drop a plastic lid and instantly give him a high value treat. Repeat 3 or 4 times, treating with the chicken/hot dog instantly. Stop and let him outside to work off any anxiety he's built up. That night, might bang on the wall a time or two with treats each time, then let him outside. That's it - just a few episodes like that for a couple of weeks to slowly get him used to the face that yes, odd noises might happen but gee, he gets the nice food when they do and they barely last long enough to do much and then stop & he gets to go out and pee, run around after!

If he's doing well, after a couple of weeks, increase the training episodes and keep treating, letting him outside after the session is over. Another thing to do with a sound-sensitive dog, when an odd noise does occur, such as a neighbor turns on a buzz saw or a truck emits a loud exhaust bang, get him a nice treat. He'll think that even odd noises not associated with mommy or daddy causing them get him a fabulous treat so really maybe loud or odd noises aren't so bad.

This type desensitization works really well on some dog and other, more stubborn cases take some professional help or another desensitization, training method helps more. Just keep learning and searching for ways to deal with panic and fear through books, articles and use what works best for you and your little dog.

My Jilly reverse sneezed a good deal of her life at times but CT exams by vets were always negative & she never progressed - just reverse sneezed at times when she was ill or nervous. Scotty did it, too, under the same circumstances, as does Tibbe. But when a dog starts to behave oddly or have a symptom of any kind, always have a vet exam first to be sure the dog is not injured or ill. I always suggest vetting first. If the dog is not hurt or sick, he's having his problems for other reasons.