What is the first treatment for rotavirus infection?

Rotavirus commonly causes watery diarrhoea, vomiting, fever and reduced appetite. The main early danger is dehydration, especially in babies, young children and people who cannot keep drinks down. Oral rehydration solution contains water and carefully balanced salts and sugar so the bowel can absorb fluid effectively. It does not remove the virus, but it supports the body while the infection settles. Antibiotics do not treat rotavirus because it is a viral infection.

Offer frequent small sips of oral rehydration solution. A spoon or syringe can help when vomiting makes drinking difficult; pause briefly after vomiting, then restart with smaller amounts. Continue breastfeeding, and offer usual suitable foods as appetite returns. Avoid relying on fizzy drinks or very sweet juices, which can worsen diarrhoea. Wash hands with soap and water after changing nappies and before preparing food, and keep the child away from school or childcare while unwell according to local advice.

Seek urgent medical help if there is unusual sleepiness, confusion, a very dry mouth, no tears, markedly reduced urination, cold or mottled skin, blood in the stool, severe abdominal pain, or repeated vomiting that prevents drinking. Babies, older adults and people with other illnesses may become dehydrated quickly. A clinician can assess hydration and decide whether fluids through a vein or hospital observation is needed.

Ask which oral rehydration product and amount suit the person’s age, how to monitor urine and alertness, and when vomiting or diarrhoea needs review. Ask how to reduce spread at home and whether routine vaccines are up to date.