If your dog vomits after eating too much, you need to deprive it of food and water for 8 to 24 hours, and then feed it some probiotics in an appropriate amount to help regulate its gastrointestinal tract and promote digestion. Dogs don’t feel full and will overeat themselves, so you need to pay more attention to their diet. Feed your dog regularly and rationed food every day. Don’t feed too much at one time. Feed some probiotics regularly and let your dog drink more water.