When you’re vomiting repeatedly, the key is to stop trying to drink normally and switch to tiny, frequent sips. About 30 milliliters (two large sips) every 3 to 5 minutes is the target, working toward roughly a liter over two hours. That pace is slow enough that your stomach can absorb fluid before rejecting it, but fast enough to prevent dehydration from setting in.
This approach works for most causes of vomiting, whether it’s a stomach bug, food poisoning, morning sickness, or a migraine. Here’s how to put it into practice and what to watch for.
Wait Before You Start Drinking
If you’ve just thrown up, resist the urge to immediately gulp water. Your stomach is still contracting, and filling it right away usually triggers another round of vomiting. Wait 15 to 30 minutes after your last episode before introducing any fluid at all. During that window, rest in whatever position feels most comfortable, and try to breathe slowly through your nose to calm the nausea reflex.
The Small-Sip Method
Once that waiting period is over, take two small sips of fluid, roughly a tablespoon each, then set the cup down. Wait 3 to 5 minutes. If that stays down, take two more sips. If you vomit again, pause for another 15 to 30 minutes and restart the cycle at an even slower pace.
This feels painfully slow, and when you’re thirsty it takes real discipline not to chug. But your stomach empties in small waves, and matching your intake to that rhythm is what keeps the fluid moving forward into your intestines rather than coming back up. Over two hours at this pace, you’ll take in about a liter, which is enough to meaningfully offset what you’re losing.
If even small sips are triggering vomiting, try sucking on ice chips instead. Ice slows the rate of delivery even further, and the cold sensation in your mouth can help suppress the nausea reflex. The physical presence of ice in your mouth stimulates saliva production and activates digestive secretions that help settle the stomach. A standard cup of ice chips melts down to roughly half a cup of water, so you’ll need to go through several cups over the course of a few hours.
What to Drink (and What to Avoid)
Plain water is fine for the first hour or two, but if vomiting continues, you’re losing electrolytes, especially sodium and potassium, that water alone won’t replace. An oral rehydration solution is the best option. You can buy premade versions at any pharmacy, or make a basic version at home with a liter of water, six level teaspoons of sugar, and half a teaspoon of salt.
Sports drinks are a common go-to, but they contain more sugar and less sodium than your body needs during active fluid loss. They’re better than nothing, but diluting them with equal parts water brings the concentration closer to what your gut can absorb efficiently. Broth is another solid choice because it’s salty, warm, and easy on the stomach.
Avoid milk, juice, caffeinated drinks, and alcohol. All of these can irritate the stomach lining or pull water into the intestines in a way that worsens diarrhea if you have it. Carbonated drinks are a mixed bag: some people find flat ginger ale soothing, but the carbonation itself can increase stomach pressure and provoke vomiting. If you want to try it, let it go flat first.
Cold, Warm, or Room Temperature?
Research on healthy volunteers found that cold drinks (around 4°C or 39°F) empty from the stomach more slowly than body-temperature fluids. That slower emptying rate is actually useful when you’re nauseous, because it means less volume hitting the sensitive part of your digestive tract at once. Cold fluids also tend to feel more soothing on a raw throat after vomiting. Room temperature is fine too, but very warm drinks move through the stomach at a similar reduced pace without the soothing effect of cold, so they don’t offer a clear advantage.
Over-the-Counter Nausea Relief
Sometimes the nausea is so intense that even tiny sips won’t stay down. In that case, an anti-nausea medication can buy you a window to get fluids in. The most accessible options are antihistamine-based products like dimenhydrinate (Gravol or Dramamine) and meclizine (Bonine). These take 30 to 60 minutes to reach full effect, so timing matters. If you can keep a dose down long enough for it to start working, it can calm the vomiting enough to begin the sip-and-wait cycle.
Bismuth subsalicylate (Pepto-Bismol) is another option that coats the stomach lining and reduces irritation. It works differently from antihistamines and is better suited for nausea caused by stomach bugs or food poisoning than for motion-related nausea. Phosphorated carbohydrate solutions are available at most pharmacies too. These are taken at 15-minute intervals until symptoms ease, up to five doses over an hour.
If you can’t keep a pill down at all, look for dissolving tablets or suppository forms. Some antihistamine products come as chewable or dissolvable tablets that absorb through the mouth lining before they ever reach the stomach.
Signs You’re Becoming Dehydrated
Your body gives clear signals when fluid loss is outpacing intake. Early signs include a dry or sticky mouth, darker urine, and a headache that gets worse when you stand up. These mean you need to be more aggressive with the sipping schedule, not less.
A simple skin test can help you gauge where you stand. Pinch the skin on the back of your hand and release it. In a well-hydrated person, it snaps back immediately. If it stays “tented” for a second or two, you’re moderately dehydrated. Reduced skin turgor, as clinicians call it, is one of the more reliable physical signs of significant fluid loss.
More concerning signs include going 8 or more hours without urinating, feeling dizzy or confused, having a racing heartbeat at rest, sunken-looking eyes, or breathing that feels unusually fast or labored. In children and infants, watch for no tears when crying, a sunken soft spot on the head, and unusual sleepiness or irritability. These red flags suggest dehydration is progressing toward a level where oral fluids alone may not be enough and intravenous fluids in a medical setting become necessary.
Special Situations
Pregnancy
Severe morning sickness (hyperemesis gravidarum) can make it nearly impossible to keep fluids down for days at a time. The sip method still applies, but many pregnant women find that sour or tart flavors, like lemon water or sour candies, help suppress the gag reflex long enough to get fluids in. Eating a few plain crackers before attempting to drink can also help, because an empty stomach often makes nausea worse.
Stomach Bugs in Children
Kids dehydrate faster than adults because they have a higher surface-area-to-body-weight ratio. For toddlers and young children, use a syringe or teaspoon to deliver 5 milliliters (one teaspoon) of oral rehydration solution every 2 to 3 minutes. Popsicles made from rehydration solution are another option that kids tolerate well, since the frozen format controls the delivery rate naturally.
After Surgery or Chemotherapy
Post-anesthesia and chemotherapy nausea can last longer than a typical stomach virus, sometimes persisting for days. Ice chips are particularly useful here. Research on chemotherapy patients found that oral cryotherapy (holding ice in the mouth) helped reduce both the intensity and frequency of nausea episodes. The cold temperature keeps the mouth moist, stimulates saliva, and activates digestive secretions that help the gut resume normal function.
How Long Recovery Takes
Most people with a stomach virus or food poisoning find that the intense vomiting phase lasts 6 to 24 hours. During that window, your only job is to prevent dangerous dehydration using the strategies above. Once you can keep sips down consistently for an hour without vomiting, gradually increase the volume. Move from sips to small cups, and from rehydration drinks to bland foods like toast, rice, or bananas.
Full rehydration after a significant episode of vomiting typically takes 24 to 48 hours of steady fluid intake. You’ll know you’re getting there when your urine returns to a pale yellow color and you stop feeling lightheaded when you stand up.