If the fever does not go away during the flu period, you can take oseltamivir phosphate capsules orally. Adults 75mg each time, children 25mg each time, twice a day, 5 days a course, can play a role in the prevention and control of influenza virus. You can also take oral Chinese medicine, such as Lianhua Qingfei granules, Pu Di Lan anti-inflammatory oral solution, Ban Lan Gen granules, Qing Kai Ling granules, Antelope Jiao granules, Shuang Huang Lian oral solution, etc., to clear the heat and detoxify the toxin. It can also be treated by Chinese herbal soup, generally belongs to wind-heat, you can use Yin Qiao San and Sang Ju Drink plus reduction, with the effect of removing wind and clearing heat. During the period of influenza, it is necessary to drink more water, pay attention to rest, supplement vitamin C, open windows to make air convection, which can reduce the rate of mutual infection. You can also fumigate the room with vinegar to prevent the onset of influenza virus.