How Long After Vomiting Can You Drink Water And Why?

logo by Editorial Staff | Updated on November 24th, 2022

If you have ever experienced vomiting, then you know that it can leave you feeling dehydrated and weak. You may be wondering how long after vomiting you can drink water. The answer depends on the severity of your symptoms and how quickly you replenish fluids.

Quick Answer: After 1-2 hours

Vomiting is the most common mechanism that our bodies use. Our stomach contents are forcefully removed from our bodies by mouth using this procedure. This is done to guarantee that no hazardous or unhealthy materials remain in our stomach. Most of the time, vomiting is a one-time occurrence caused by the ingestion of a harmful food or drink.

person holding clear drinking glass

However, if it occurs more than once, vomiting is considered an indication of more serious medical issues. If you are vomiting regularly, you will be dehydrated, and it is critical to cure this dehydration. The most common treatment for dehydration is to drink plenty of water. But how much and how long should we drink water?

How Long Can You Drink Water After Vomiting?

Vomiting can occur for a variety of causes. Food poisoning, motion sickness, indigestion, acute discomfort, irritable bowel syndrome (IBS), medicines, and food allergies are the most common causes in adults. It is caused by viral gastroenteritis, milk intolerance, and when newborns ingest milk too quickly. 

Finally, vomiting in pregnant women is caused by morning sickness, sensitivity to certain taste or smell, and migraine headaches.

As previously said, vomiting might be a one-time incident or the result of various ailments. There isn’t anything to worry about if you’ve only vomited once or twice. It was just a method of removing harmful materials from your stomach.

However, if you are constantly vomiting, it is most likely due to stomach illnesses, food poisoning, or other medical disorders. This regular vomiting might potentially lead to further medical problems. Although these problems are not life-threatening, they must be addressed. Dehydration is one of these problems.

Dehydration is generally addressed by drinking fluids, primarily water. Other options for consumption include ice chips, clear drinks, and broth. As a result, it is critical to understand when and how we ingest water.

You should not drink any liquids or eat anything for at least two hours after vomiting. You can suck the ice chips for the next two hours if you like. After two hours, you should begin drinking sips of water every 15 minutes. This must be done for the following 3-4 hours. This will assist you in rehydrating.

Why is it so difficult to drink water after vomiting?

Dehydration is a medical condition in which your body has lost a significant amount of water. Your body does not have enough water to carry out its operations as a result of this loss. Dehydration may be dangerous for children and the elderly. It is critical for them, as well as other individuals, to replenish all of the lost water. As a result, when we feel dehydrated, we should drink plenty of water.

Doctors advise patients to drink plenty of water since vomiting promotes dehydration. However, even though we must drink water to rehydrate ourselves after frequent vomiting, we must not swallow it immediately soon. After vomiting, drinking a lot of water may make you feel nauseous again.

This is due to the fact that our stomach is not steady for around 2 hours after vomiting and may be unable to tolerate the water taken. As a result, the experts recommend sucking on ice chips at that period to keep your mouth from drying up. The water from these ice chips is absorbed by the mouth’s mucous membrane. As a result, because this water does not enter your stomach, it prevents additional vomiting.

When your stomach is steady after two hours, you can attempt drinking some water. Begin by taking little sips of water and gradually increase the amount of water you drink every half hour.

Although drinking water is one of the most effective ways to rehydrate ourselves, it contains no minerals that increase the level of salts in our systems. As a result, if you can successfully swallow water after vomiting, you may also begin ingesting other fluids that will aid in rehydration.

Dehydration signs and symptoms

Vomiting and diarrhea are commonly regarded as symptoms in and of themselves, yet the major outcome of both is dehydration. The difficult aspect is that you may not notice the signs of dehydration until you are very dehydrated, and some of the symptoms may differ depending on your age. 

Early detection is critical for correct treatment and avoidance of a more serious illness that might be life-threatening, especially in youngsters and the elderly.

Here are some things to watch for:

For people of all ages

  • Thirst
  • Lips and mouth that are dry, sticky, and tacky-like
  • Mucous membranes that are dry
  • Skin that is less elastic and springy
  • Circulation changes; pale, chilly hands and feet
  • Dark urine

In newborns and young children

  • There have been no wet diapers in more than 12 hours.
  • Feverish or warm
  • When sobbing, there are little or no tears.
  • The eyes appear sunken.
  • drowsy or dizzy

How to Avoid Dehydration

When you are ill with diarrhea or vomiting, you lose a lot of fluid. As a result, it’s critical to consume as much fluid as possible. The most important thing is to drink enough of water. The amount of water you need to replace is determined by how much is lost.

People with specific medical disorders, such as heart failure or incontinence, may need to limit their fluid intake; thus, when you’re unwell, ask your doctor how much fluid you need to avoid dehydration.

It may be difficult to keep fluids down if you are queasy. “Try sipping tiny quantities of water as regularly as possible,” suggests Joshua Evans, MD, a dehydration expert at Children’s Hospital of Michigan in Detroit. Sucking on ice or cold Popsicles might help you drink more fluids.

The body is rehydrated by water. “However, water does not replace the vital salts required by the body for fluid balance and other activities,” Evans explains. During an episode of diarrhea or vomiting, it is critical to replace these vital minerals. The majority of specialists advise consuming oral rehydration solutions.

Experts on dehydration advise removing unnecessary clothes and/or seeking shade or an air-conditioned shelter to keep your body cool.

How to Rehydrate Yourself After Vomiting

After vomiting, it is critical to rehydrate. After vomiting, avoid drinking any drinks for one or two hours. You can chew on ice chips or rinse your mouth with water if your mouth becomes dry or if you have an unpleasant taste in your mouth.

Begin carefully rehydrating one to two hours after vomiting and nausea has subsided. For three to four hours, sip clear fluids every 15 minutes. If you begin to vomit again, resume the hydration process again.

Don’t overdo it on the water.

You may be anxious about rehydrating yourself after vomiting. You have a genuine and significant issue. Instead than drinking a glass of water, consider gradually reintroducing it into your diet. If you drink too quickly, you may wind yourself vomiting water afterward.

Here’s a brief guide to rehydrating after vomiting:

  • Allow your stomach to settle for a few hours after vomiting.
  • Begin with clear liquids such as water.
  • Sip your water slowly at first.
  • You can drink at your usual rate after carefully swallowing a glass of water.
  • Try an electrolyte drink, but avoid sugary drinks.
  • Continue to drink water carefully, trying to meet your daily requirements but without pushing it.
  • Stop if you’re full.
  • Allow yourself 24 hours before consuming big volumes of water in a short period of time.

What should you drink after vomiting?

Ice cubes or chips

Vomiting and nausea frequently go hand in hand, so keeping any liquids down might be difficult at times. For cancer patients, extreme nausea and prolonged vomiting are frequent side effects of radiation and chemotherapy. 

Sucking on ice chips or frozen juice chips, according to the American Cancer Society, is a fantastic method to restore some lost water after vomiting if you feel too sick to ingest large volumes of fluids. 

The majority of the water from the ice chips is absorbed via your mouth’s mucous membrane rather than passing through your stomach. If making ice chips is too time-consuming, consider a frozen ice pop instead.

Water that Has Been Purified

Start with little quantities of water if you believe you can keep fluids down. After you have stopped vomiting and feel steady, start with 1 teaspoon of lukewarm water every 10 minutes and gradually increase to 1 tablespoon every half hour. 

If your body absorbs the water and you no longer feel like you’re about to puke, try greater quantities – but sip it rather than gulp it. Purified water is ideal for rehydrating, but it often lacks the minerals needed to restore lost electrolytes or salts, so you’ll need to consume other fluids at some point.

Liquids that are clear

Other than water, clear beverages that are suitable for rehydrating after vomiting include diluted apple juice, weak lemonade, sport drinks, mint tea with honey, flat ginger ale, and specially developed electrolyte drinks, which are available at most pharmacies. 

These fluids contain salt, potassium, and readily digested sugar, which is necessary for brain function and preventing hypoglycemia if you haven’t eaten in a while. Make sure the apple juice or lemonade isn’t too sour, otherwise it can irritate your stomach. Until night, drink at least 8 ounces of clear liquids every hour.

Drink broth

Broth is another fantastic source of water and electrolytes, especially if you’re starting to regain your appetite but aren’t ready for solid meals. Broth also includes some fat and vitamins, which are beneficial once the nausea has subsided. Because the acid in the vomit often makes the mucous membranes of the throat and esophagus sensitive to heat for a few hours or so after vomiting, cool the soup first.

When to See a Doctor

Vomiting can sometimes be an indication of a significant underlying health condition. If a person has any of the following symptoms, they should consult a doctor:

  • intense or regular vomiting lasting more than a day and a half
  • difficulty to keep fluids down are symptoms of severe dehydration, such as:
  • a fast heartbeat
  • sunken eyes anxiety passing little to no urine
  • a rapid and unexpected weight reduction
  • vomiting Green bile, which can signify a bowel obstruction

Furthermore, vomiting might occasionally suggest a significant underlying health problem that need immediate care.

If a person has any of the following symptoms, they should seek emergency medical attention:

  • stomach pain that comes on suddenly and is severe
  • excruciating chest ache
  • sudden, intense headache unlike any they have ever experienced, 
  • high fever, and stiff neck 
  • vomit with blood or a material like coffee grounds 
  • potential intake of a toxin or other harmful substance


As a result, if you feel like you’re vomiting a lot, you should drink a lot of water to rehydrate yourself. Consuming a variety of healthful drinks, in addition to water, aids in restoring the fluids lost during vomiting. You should begin by sipping water at regular intervals of 15 minutes, and after around 4 hours, you may begin drinking other beverages as well.

Although we cannot drink water immediately after vomiting, we can rinse our mouth to erase the unpleasant taste of vomit. The stomach acid is also gone along with the flavor. Doctors also recommend another drink to aid with rehydration. This drink’s constituents are salt, sugar, and water. This drink is relatively simple to create while also being considerably more effective.


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