Your vet is correct. We have several dogs, and they usually have this symptom after a teeth cleaning procedure. You can spray some sore throat spray in her mouth to ease the dryness. Sometimes our dogs will have this sort of cough for several days.
I've got an 8 month old (beautiful, blue) dane. Ears were cropped. One ear simply will not stand. I don't want to give up on the taping yet, but I also don't want to keep taping the other ear since it isn't necessary.
Anyone know of a one ear technique? That is, something without a bridge between the ears to keep them standing?