Stomach Bugs in Children: Preventing Dehydration
Vomiting and diarrhoea are usually short-lived, but fluid loss is the real risk
Healthlife Editorial Team
Medical writers
In simple terms
Practical rehydration steps, what to feed, and the warning signs that mean your child needs to be seen.
What is happening
Most stomach bugs in children are viral. The gut lining is temporarily irritated, so water and salts leave the body faster than they come in. Antibiotics do not help and can make diarrhoea worse.
Rehydration, the right way
- Use oral rehydration solution from the pharmacy, not sugary drinks or soda
- Give small amounts very often: a teaspoon or two every few minutes if vomiting
- Keep breastfeeding or formula feeding as usual
- Return to normal food as soon as the child is willing; there is no need for a strict diet
Signs of dehydration
- Fewer wet nappies, or no urine for 6 to 8 hours
- Dry mouth, no tears when crying, sunken eyes
- Unusual drowsiness or floppiness
Stopping it spreading
Careful handwashing with soap, separate towels, and keeping the child home until 48 hours after the last episode.
When to seek medical help
- Any dehydration sign, or a baby under 6 months
- Blood in the stool, or persistent green vomiting
- Severe stomach pain, or symptoms lasting more than a week
This article explains general health information in simple language. It does not replace advice from your own doctor.
The words explained
Medical terms used above, in everyday language.
- Symptom
- A sign you can feel or see that something is wrong, like pain, tiredness or a rash.
- Antibiotic
- A medicine that kills bacteria. It does not work against viruses like colds or flu.
When should you see a doctor?
- Your symptoms last more than a few weeks or keep coming back.
- They get worse quickly, or stop you doing everyday things.
- You notice sudden pain, breathing trouble, fainting or bleeding — seek urgent care.
- You already take medication and want to change anything about it.
This article explains general health information. It does not replace advice from your own doctor.
Frequently asked questions
- What is Stomach Bugs in Children: Preventing Dehydration?
- Practical rehydration steps, what to feed, and the warning signs that mean your child needs to be seen.
- What are the main symptoms or signs of Stomach Bugs in Children: Preventing Dehydration?
- Common signs vary from person to person. The article above lists the symptoms to watch for, how they progress, and when they need medical attention.
- When should you see a doctor for Stomach Bugs in Children: Preventing Dehydration?
- See a doctor if symptoms last more than a few weeks, get worse quickly, stop you doing everyday things, or if you notice sudden pain, breathing trouble, fainting or bleeding.
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