Most cases of Bali belly come from contaminated water or food, not bad luck. Give kids bottled or boiled water for drinking and mixing formula, and use it for brushing teeth too, since tap water safety for kids in Bali is a real concern in most areas outside big filtered systems. Skip ice unless you know it was made from bottled or purified water. Wash hands with soap before meals and after the bathroom, and rinse fruit and vegetables well or peel them. Many family-friendly spots, including some restaurants with playgrounds for kids in Bali, handle food carefully, but freshly cut fruit sitting out or lukewarm buffet dishes are worth skipping.
If your child does get sick, the main risk is dehydration, not the bug itself. Offer small, frequent sips of oral rehydration salts mixed with clean water, sold at most pharmacies here, rather than large gulps that can trigger more vomiting. Babies should keep breastfeeding or taking formula as normal. Once your child can hold fluids down, reintroduce plain food like rice, bananas, and toast, and hold off on dairy and sugary drinks for a few days, and skip fried or greasy food too. Watch for dry lips, no tears when crying, a sunken soft spot in babies, or noticeably less urination.
See a doctor or clinic promptly if your child has a high fever, blood or mucus in the stool, repeated vomiting that won't stop, or diarrhea lasting more than two or three days. Babies under twelve months and toddlers dehydrate faster than adults, so don't wait it out at home if they seem drowsy or unusually quiet. Most family clinics on the island are used to treating Bali belly in kids and can check for parasites or a bacterial infection with a simple stool test.
This is general information, not medical advice. For anything specific to your child, please consult a doctor or a travel-health clinic.
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