The sneezing that your pup is experiencing could be the result of having a small object lodged in his nose. This happens all of the time and is typically nothing to worry about. When walking your dog he will sniff in every tiny corner he can, which is just what dogs do. All it takes is the smallest granule of dirt or sand to get caught up in the nasal passage and become stuck.
Small pieces of leaves and other items found during a long walk with your pet may also cause the symptoms of dog sneezing to result, often lasting hours until the object becomes blown out. Just last week when walking my German Shepherd dog he sucked up a small piece of wood that was broken off of an old fence. I could literally see it poking through his nose from the outside. All we could do was wait until the sneezing stopped. And it did, about 2 hours later the dog symptoms sneezing ended and the tiny piece of wood was removed.
Note: If there is an object in your dog’s nose and it does not come out after some time, please go see your local veterinarian to remove it.
An Allergic Reaction
On the other hand, if your dog is sneezing out of control and is doing so without being outside, then the chances are high that the dog sneezing is from an allergy of some sort. The cause of dog allergies is not easy to spot and if your dog has been exposed to a dangerous compound then further symptoms may occur that will be cause for a visit to the veterinarian.
There are two types of dog allergic reactions that will require emergency care. One is called anaphylactic shock and the other is hives. If your dog symptoms sneezing leads to these issues then you must get your dog to the vet immediately.
Anaphylactic shock can be caused by several agents, such as insect bites, a bad reaction to food, drugs (specifically antibiotics), vaccines, and hormones – just to name a few. These issues may produce a reaction in your dog within just a few minutes and followed by dog vomiting, shock, dog diarrhea, breathing problems, and coma.