Dreaming of being bitten by a dog represents the relationship between people, and it also means that you are pestered or hated by troubles, or disturbed by people who stab you in the back by villains. You should control your emotions and avoid quarreling with others.
It is also very important that dreamers often see stray dogs recently, and they are disgusted and afraid of being bitten by stray dogs. This psychological factor led Duke Zhou to dream of being bitten by a dog.