There are two types of influenza, Influenza A and Influenza B. Influenza A has a high fever as its main manifestation, while Influenza B has a fever and gastrointestinal symptoms, which are the most common. What should I do at this time? If the diagnosis is clear in the early stage, antiviral treatment can be given for influenza B. The most common one is oseltamivir, which has a very good anti-influenza virus effect, and if there is a lot of diarrhea, anti-diarrhea can be given symptomatically, such as traditional Chinese medicine or western medicine, such as patchouli or polygonum. Also need to pay attention to oral salt and hydration, not because of diarrhea obvious dehydration caused by discomfort. Therefore, if we consider that early influenza affects diarrhea, we can give anti-viral treatment, and at the same time give symptomatic treatment of anti-diarrhea, rehydration and salt replenishment.