It is very common for all dogs to sneeze on an occasional basis, especially when they first wake up. However, allergic sneezing is typically a nonproductive sneeze that occurs in paroxysms and the infections will often produce puss. If you notice a bloody discharge from a single nostril then that is an indication of a tumor or a foreign object.
What to do: If your dog is displaying such symptoms then immediately consult your veterinarian for the correct diagnosis. While eliminating the cause of allergic sneezing is the best option, it can also be reduced by giving your dog antihistamines. Medications will need to be administered if there is an infection. These infections can be viral, bacterial, or fungal. If there is indeed a tumor, then surgery will be the only option. And in the fortunate event that your dog merely has a foreign object stuck in his nostril, then the object can be sneezed forward enough until the vet can reach it and remove the object.
Abnormal Breathing Habits
If your dog is displaying abnormal breathing habits then do not take it lightly. Distressed or unusual rhythmic breathing can be a life-threating sign of a major problem to your dog's health. Pleural effusions of blood and puss can cause a persistent cough, in addition to breathing troubles. Your dog may also show a complete lack of energy and movement. If there is shallow breathing, then this may be an indication of damage to your dog's ribs. And be on the watch for rapid breathing, which could be a severe problem due to long, heart, or kidney disease.
What to do: Consult your veterinarian right away if you detect the above breathing symptoms. Do not waste time in getting your dog medical attention just because you cannot see or feel an injury. Remember, there may be severe internal damage coming from your dog's body. Your vet may have to use pleural effusions which are surgically tapped and drained to reduce pressure on the lungs.
Constant Gagging of Coughing
If your dog is showing signs of persistent coughing or gagging, he may have poor heart function, a collapsed windpipe, chronic bronchitis, or some type of worm parasite. Fluid builds up in the lungs, which causes a gag. In time the cough will get more and more announced, especially after exercise.
What to do: If you suspect your dog of having any of the above problems then the vest may have to insert an artificial windpipe, administer medications, or at worst, surgery. Improvement to cardiac function controls heart related coughing.
