Gastroenteritis—vomiting and diarrhoea—is a very common illness in young children, most often caused by a viral infection. While symptoms can be distressing, the condition is usually self-limiting. The main concern is dehydration, which can develop more quickly in infants and toddlers.
Managing symptoms at home
The priority is maintaining good hydration:
- Offer small, frequent amounts of fluid (water, milk, or oral rehydration solution)
- Continue breastfeeding or usual formula feeds
- Introduce food gradually as appetite returns
- Avoid sugary drinks, which may worsen diarrhoea
Vomiting often settles within 24–48 hours, while diarrhoea may persist for several days.
Signs of dehydration
It is important to monitor for early signs:
- Dry lips or mouth
- Reduced urine output (fewer wet nappies)
- No tears when crying
- Sunken eyes or unusual drowsiness
When to seek urgent medical attention
You should seek prompt medical review if your child has:
- Symptoms under 6 months of age
- Blood in the stool or green (bile-stained) vomiting
- Persistent vomiting or inability to keep fluids down
- Signs of moderate to severe dehydration
- High fever, marked lethargy, or reduced responsiveness
- Severe or worsening abdominal pain
When to contact a GP
Consider arranging a GP appointment if:
- Symptoms are not improving after 48 hours
- You are unsure about your child’s hydration
- Your child has an underlying medical condition
In most cases, children recover quickly with supportive care at home. Careful attention to fluid intake and early recognition of concerning features are key.
If you have any concerns about your child’s symptoms, our GP team would be happy to advise and assess as needed. Contact us today.