
Everyone does things their way.
I personally dont use the kc vaccine at all and in all my years and all my dogs have only had an episode once...brought in i believe from a new puppy, this was treated as many people have already mentioned with just cough medicene to make them more comfortable, the kc has to run its course.
But then i dont vaccinate at all after the first initial puppy vaccines as i believe immunity is then built up over time and years of exposure, i am not a fan of chemicals constantly on my dogs, ie frontline etc too and only use these in the height of the summer.
But as i say everyone does things differently due to their own personal experiences.