The process of administering kennel cough vaccine intranasally involves two people: one to hold the dog and one to give the medication. The first person needs to grip the dog's muzzle so the head stays still and cover the eyes so the dog does not see the medicine coming. The other person then drips a few drops of the vaccine in each nostril using the syringe provided with the medication. If the dog snorts and a little of the medicine is lost, it's not a big deal; the little bit that stayed in will do the trick.