Will Falconer, DVM Moderator
Hey Bob, I'd have to agree. If you go back in the histories of most itchy dogs (whether it's feet or anywhere else), you'll often see the itch began after a round of shots. But not immediately (so, Dr. WhiteCoat often misses this). It's commonly a month or so later.
Bravo for leaving the annual vacc clinic! Those folks were driven by pure greed (or maybe a slice of ignorance as well, but c'mon, vet organizations have been saying annuals are out for decades now).
If you want to dig deeper, read through my free series on vaccinations, starting here.