Alongside vomiting, diarrhea is a hallmark symptom of norovirus—and it usually shows up just as quickly. The stool tends to be watery, and the episodes can be frequent and urgent. For adults, it’s exhausting. For kids and older adults, it can become dangerous if dehydration sets in.
This symptom typically lasts for a couple of days, but during that time, the body can lose a lot of fluids fast. Electrolyte drinks, broths, or even ice chips can help if drinking feels difficult. If symptoms worsen or linger longer than expected, it’s worth checking in with a doctor.

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