If you keep throwing up, the most important thing to do right now is stop trying to eat or drink large amounts and instead take tiny sips of fluid, aiming for at least one ounce (about two tablespoons) per hour. Most vomiting from common causes like a stomach bug or food poisoning resolves on its own within one to two days, but managing your fluid intake and watching for warning signs in the meantime makes a real difference in how you feel and how quickly you recover.
Start With Small Sips, Not Big Drinks
Your instinct when you’re vomiting might be to gulp down water between episodes, but a full stomach is more likely to trigger another round. Instead, take small sips every few minutes over the course of several hours. A medicine cup, teaspoon, or even a syringe works well if regular cups feel like too much. The goal is to keep at least one ounce of fluid down per hour.
Good options include water, an oral rehydration solution, diluted juice, or clear broth. Sports drinks can work in a pinch, though they contain more sugar than ideal. Avoid milk, caffeinated drinks, and alcohol, all of which can irritate your stomach further. If plain water makes you gag, small chips of ice or frozen electrolyte pops are easier to tolerate and still count toward your fluid goal.
How to Position Your Body
Lying flat on your back increases the chance of inhaling vomit, which can cause a serious lung infection. Keep your head and upper body elevated at a 30 to 45 degree angle, roughly the position you’d be in propped up on two or three pillows. If you can’t sit up that far, even a slight incline is safer than lying flat. For someone who’s drowsy or intoxicated and vomiting, the recovery position (on their side with their head angled slightly downward) helps vomit drain out of the mouth rather than back toward the airway.
When to Eat Again
You don’t need to follow the old advice about eating only bananas, rice, applesauce, and toast. Research shows that a restricted diet doesn’t actually help you recover from a stomach illness faster. Once your appetite returns and you’ve kept fluids down for a few hours, you can go back to eating your normal diet. Start with whatever sounds appealing and easy on your stomach. If that happens to be toast or crackers, great, but there’s no medical reason to limit yourself to bland foods if you feel ready for more.
Most people find that small, frequent meals feel better than large ones in the first day or two after vomiting stops. Greasy or heavily spiced food may be harder to tolerate initially, but that’s about comfort, not medical necessity.
Over-the-Counter Options
A few products can help take the edge off nausea between vomiting episodes. Bismuth subsalicylate (the active ingredient in Pepto-Bismol) coats the stomach lining and can calm nausea from overindulgence or stomach bugs. Phosphorated carbohydrate solutions, sold under brand names like Emetrol, work by soothing the stomach directly. You take a dose every 15 minutes until symptoms ease, up to five doses in an hour. Don’t dilute it or drink anything immediately after, since that reduces its effectiveness.
Antihistamine-based motion sickness medications can also reduce nausea, though they tend to cause drowsiness. Bismuth subsalicylate should not be given to children under 12, and phosphorated carbohydrate solutions aren’t safe for people with diabetes due to their high sugar content.
Stomach Bug vs. Food Poisoning
The two most common reasons for repeated vomiting are viral gastroenteritis (stomach bug) and bacterial food poisoning, and telling them apart helps you know what to expect. Food poisoning hits fast, typically two to six hours after eating contaminated food, and tends to burn through your system relatively quickly. A stomach bug has a longer incubation period of 24 to 48 hours before symptoms start and generally lasts about two days, sometimes longer.
Both are managed the same way at home: small sips, rest, and time. Neither one requires antibiotics in most cases. If multiple people who ate the same meal get sick around the same time, food poisoning is the likely culprit. If symptoms creep up a day or two after exposure to someone who was ill, it’s probably viral.
Dehydration Warning Signs
Dehydration is the main risk when you can’t keep anything down. In adults, watch for excessive thirst, dark yellow urine, urinating much less than usual, dry mouth, dizziness when you stand up, and general weakness. If you notice several of these together, you likely need medical help to get fluids replaced faster than sipping can manage.
Children dehydrate faster than adults, so the signs matter even more. A baby who normally soaks six to eight diapers a day but drops to fewer than three or four is dehydrated. Potty-trained kids who stop urinating or go only once or twice a day are in the same territory. Other red flags in children include no tears when crying, extreme sleepiness, unusual irritability, and feeding less than normal. A child who seems confused, can’t answer questions clearly, or has a rapid resting heart rate needs immediate medical attention.
When Vomiting Becomes an Emergency
Most vomiting is unpleasant but not dangerous. However, certain signs mean you should get to an emergency room or call 911:
- Vomit that contains blood, looks like coffee grounds, or is bright green: this can signal bleeding or a bowel obstruction.
- Vomit with a fecal smell: this suggests a serious intestinal blockage.
- Chest pain, severe abdominal pain, or cramping alongside vomiting.
- Confusion, blurred vision, or a stiff neck with high fever.
For adults, vomiting that lasts more than two days warrants a call to your doctor even without the emergency signs above. For children under two, that threshold drops to 24 hours. For infants, call after 12 hours. If you’ve been dealing with recurring bouts of nausea and vomiting for longer than a month, or you’ve lost weight you can’t explain, those patterns also deserve a medical evaluation since they can point to causes beyond a simple stomach bug.