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Diarrhoea & Vomiting

Key Information

The Cause: Most cases are caused by a viral stomach bug.
The Treatment: Antibiotics will not help. Your body will usually fight it off on its own — your role is to support recovery.
The Location: These bugs are highly infectious, so the safest place to recover is at home.

1. Stay Hydrated (Most Important)
- You lose a lot of fluid during diarrhoea and vomiting, so replacing fluids is essential.
- Technique: Take small, frequent sips of water. Drinking too much too quickly may make you vomit again.
- Food: Do not worry about eating if you do not feel like it. Focus on fluids first, then gradually reintroduce bland foods as you improve.
2. The 48-Hour Rule
- Stay Off: Remain off work or school until 48 hours after your last episode of diarrhoea or vomiting.
- Hygiene: Wash your hands frequently with soap and water to prevent spreading the infection.

Most cases resolve within a few days. However, seek medical advice if you notice any of the following:

For Adults:

Severe Dehydration: You are passing very little urine, feel dizzy, or feel confused.
Blood: You have bloody diarrhoea.
Duration: Symptoms are not improving after a few days.
Other Symptoms: You have a very high fever or severe stomach pain.

For Children:

For most tummy bugs: stay home, stay hydrated, and rest.

If you or your child develop any of the red flag symptoms listed above, please do not hesitate to get in touch.

For more information on diarrhoea and vomiting, please visit the NHS website.

Last reviewed: 01 January 2026
Next review due: 01 January 2029