Whether a dog with concussion and vomiting can be saved depends on whether the concussion is serious. Dogs with concussion will suffer from vomiting, drooling, unsteady walking, unsteady standing, lack of energy, etc. It is best to take the dog to Under examination at the hospital, active treatment is provided to avoid delaying treatment opportunities. You should pay more attention to avoid accidents with your dog. When you go out to walk your dog, you must keep a tight leash and do not take your dog to dangerous or relatively high places.