So, back to the case, I don't know if our dog's coughing will start back up or not, but if I were you, I'd ask your vet to knock out your dog and put one of those microscope view-finders in his throat and down to his tummy, and see if there's something there to pull out, like the cigar blob thing my dog threw up. Then give him a
mixture of milk and honey for a
few days, until eventually he quits coughing
. Can't hurt.