Yes, giving water to a poisoned dog might help dilute the poison but is not a solution by itself. After suspecting poisoning, it’s crucial to contact a veterinarian immediately. In some cases, certain poisons can be exacerbated by water consumption. When advised by a professional, use water to flush out the dog’s mouth but don’t induce vomiting without veterinary advice as it can worsen some poisonings. Time is crucial, so seek veterinary help promptly, providing information about the suspected poison, symptoms, and any relevant details. I once aided a dog who ingested a toxic plant; swift veterinary care saved its life. Prompt action is key in poisoning cases.