Symptoms · · 7 min read

Nausea and vomiting: what helps and when to get help

Nausea is one of the body's most common signals. It goes with infections, migraine, motion sickness, pregnancy, medicines and many other conditions. Most episodes pass in a day or two, and the main task at home is to avoid dehydration. This article covers how to drink and eat, what helps beyond that, when a medicine is part of the answer and the signs that point to something more than a bad meal.

Illustration of a glass of water, a cup of tea and a lemon wedge

In short

  • At home, the goal is to keep up your fluids, not to stop the vomiting at any cost.
  • Take regular small sips of a cold drink and eat small, plain meals when you can.
  • Medicines are a common cause of nausea, so review your list with your provider.
  • Vomiting lasting more than 24 hours, blood in the vomit or severe belly pain needs medical help.
  • Sudden nausea with chest pain or shortness of breath can signal a heart attack.

Common causes

  • Norovirus and food poisoning, usually with diarrhea.
  • Flu or another infection, often with headache and a high temperature.
  • Acid reflux, with heartburn or bloating after eating.
  • Migraine, where feeling or being sick is a main symptom.
  • Labyrinthitis, vertigo and motion sickness.
  • Pregnancy (morning sickness).
  • Medicines, including cancer chemotherapy, and recent surgery.
  • Ulcers, intestinal obstruction, anxiety and alcohol.

If your nausea began in the days after you started a new medicine, a link is plausible. Do not stop it on your own, but tell your provider, who may adjust the timing or choose another option.

Drinking when everything comes back up

  1. SipTake regular sips of a cold drink, little and often. If liquids are hard to keep down, stick to small amounts of clear liquids.
  2. Choose wellWater is fine, and NHS suggests ginger or peppermint tea. Avoid fruit juice and fizzy drinks, which can worsen diarrhea if you also have it. Vomiting can lead to dehydration, so keep the sipping going even if you cannot face food.
  3. Add an oral rehydration solutionIf vomiting and diarrhea continue, a pharmacist can recommend oral rehydration powder mixed with water.
  4. Watch your urineDark urine or passing less than usual is a sign of dehydration.

Eating

  • Eat bland foods in smaller meals, more often.
  • Avoid spicy, fatty, greasy or very salty food, and avoid eating quickly.
  • Avoid large drinks with meals, lying down soon after eating and tight clothing around the waist.
  • Strong smells can trigger nausea, so open a window, ask others not to cook nearby and try fresh air.
  • Eat when you feel able; do not force food if you are very nauseated.

What else can help

  • Ginger or peppermint tea, and ginger foods such as ginger biscuits.
  • Fresh air and distraction, such as music or a film.
  • Medicines: treatment depends on the cause, and some medicines relieve nausea and vomiting. Your clinician may prescribe anti-sickness medicine if nausea lasts or returns.
  • Severe cases may need IV fluids in a hospital.

Over-the-counter anti-sickness products have limits by age and health, so ask a pharmacist before using one, and avoid self-treating when you have the warning signs below. Distraction matters more than it sounds: music, a film or a few minutes of cool fresh air can take the edge off the feeling while the cause passes. NHS notes that nausea often goes away by itself, and that vomiting from a stomach bug usually stops within one or two days.

Pregnancy, children and older adults

In pregnancy, NHS suggests resting, sipping fluids little and often, and eating small, frequent, plain meals that are high in carbohydrate and low in fat, such as toast, rice, crackers or pasta. Cold food may be easier if hot smells bother you. Some evidence suggests ginger may reduce nausea, but check with a pharmacist before taking ginger supplements. Contact your midwife or provider if you cannot keep food or fluids down for 24 hours, pass very dark urine or none for over 8 hours, lose weight, feel dizzy, vomit blood or have a high temperature or belly pain. Severe pregnancy sickness (hyperemesis gravidarum) can lead to dehydration and may need hospital care.

Babies and older adults can become dehydrated quickly, so seek advice sooner for them. Fewer wet diapers in a child under 5 is a warning sign.

Red flags and when to see a doctor

Red flags: call 911 for sudden nausea with tight or heavy chest pain, pain spreading to the arms, back, neck or jaw, or shortness of breath, which could signal a heart attack. Also call 911 for blood in your vomit or vomit that is green or looks like coffee grounds, confusion, severe difficulty breathing, or a sudden severe headache or belly ache.

Contact a provider promptly for vomiting that lasts longer than 24 hours, severe abdominal pain, a severe headache with a stiff neck, possible poisoning, or signs of dehydration such as a dry mouth, infrequent urination or dark urine. Make a routine appointment if nausea lasts for a few days, keeps coming back, or comes with heartburn, weight loss or a change in appetite.

Preparing for the visit

A clinician can look for the cause and may prescribe anti-sickness medicine. Bring a list of all your medicines and supplements, notes on when episodes happen and how they relate to meals, and your recent weight. Whether nausea follows food, changes with posture or is worse at a certain time of day helps direct any tests.

Questions for your provider

  • Could one of my medicines be causing this?
  • Do I need tests to find the cause?
  • Which anti-sickness medicine is safe for me?
  • How much should I drink while I recover?
  • Should I adjust my regular medicines for now?
  • When should I call 911 rather than wait?

Questions and answers

Does ginger help nausea?

Some evidence suggests ginger may reduce nausea and vomiting, and NHS suggests ginger or peppermint tea and ginger foods. If you are pregnant, check with a pharmacist before taking ginger supplements.

How long should nausea last?

Nausea is common and often goes away by itself. See your provider if you do not feel better within a few days or it keeps coming back, and contact one promptly if vomiting lasts longer than 24 hours.

Why do I feel sick in the morning when I am not pregnant?

Reflux, anxiety, alcohol and medicines are among the causes listed for nausea in general. If it happens regularly, your provider can look for the reason.

What helps with morning sickness?

Eating something plain, such as crackers, before getting out of bed helps some people, and so do small frequent meals, cold food, rest and acupressure on the wrist. Tell your provider if it is severe.

When is vomiting dangerous?

Blood in the vomit, green or coffee-ground vomit, severe belly pain, a severe headache with a stiff neck, confusion, or signs of dehydration need prompt medical help.

Sources

  1. NHS — Feeling sick (nausea)
  2. MedlinePlus — Nausea and Vomiting
  3. NHS — Diarrhoea and vomiting
  4. NHS — Vomiting and morning sickness in pregnancy
  5. NHS — Migraine

Sources checked on 29 October 2026.

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