I just took my 12 week old puppy to the vet today for the first time and he had to get the Bortadella (sp?) shot, for kennel cough, the vet said he just had it slightly. He gave it to him through the nose, I'm alittle worried because I didnt know they did it this way. Is there anything I should be looking out for. The vet said that he will be really sleepy and that I could give him half of a baby aspirin if I chose to. Has anyone had any experience with this, if so can you share your experience?! Thanks in advance