Key Information

The Cause: Diarrhoea and vomiting are very common. In most cases, the cause is a viral stomach bug.

The Treatment: Because it is a virus, antibiotics will not help. Your body is brilliant at fighting it off on its own. Your job is simply to support your body while it recovers.

The Location: Because these bugs are highly infectious, the best place for you is at home. You rarely need to see a doctor for a standard tummy bug.

How to Manage at Home

1. Stay Hydrated (Most Important)

You lose a lot of fluid during these illnesses, so you must replace it.

• Technique: Take small, frequent sips of water. If you drink too much too quickly, you might just bring it back up.
• Food: Don't worry about eating if you don't feel like it. Focus on drinking. As you feel better, gradually reintroduce bland foods.

2. The 48-Hour Rule

To avoid spreading the infection to others:

• Stay Off: You must stay off work or school until 48 hours after your last episode of diarrhoea or vomiting.
• Hygiene: Wash your hands frequently with soap and water.

When to Contact Us

While most cases resolve in a few days, there are specific signs that indicate you need medical advice.

For Adults:

Please contact us if:

• Severe Dehydration: You are not passing much 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:

Please seek advice if:

• Vomiting: Lasts for more than 2 days.
• Diarrhoea: Lasts for more than 7 days.

What Happens Next?

For most tummy bugs: stay home, stay hydrated, and rest. However, if you or your child have any of the "Red Flag" symptoms listed above, please do not hesitate to get in touch.

Discuss Symptoms

Further Information

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

• Learn more about diarrhoea and vomiting

Last reviewed: 12 April 2026
Next review due: 12 April 2029