bite the dog that bit you

To again ingest something that recently made one ill, especially drinking more alcohol in order to cure a hangover. A: "You need to bite the dog that bit you if you want to feel better." B: "Ew, no! I'm never touching vodka ever again!" All that beer has left me feeling terrible this morning, but I know the only cure is to bite the dog that bit you, so, bottoms up! A: "Here, it's time to bite the dog that bite you." B: "Get that away from me—the smell of alcohol is enough to make me throw up!"