Adults with normal blood count but fever are considered to have viral infection, and should be observed for other clinical symptoms, such as sore throat, cough, sputum, runny nose, sneezing, etc. If these cold symptoms are combined, they are considered to be caused by viral flu. Influenza is very common, so it is recommended to go to the hospital to improve the routine blood tests and viral tests to clarify. If it is clear that the flu is influenza, you can apply oral anti-influenza drugs such as oseltamivir, and you can also apply Chinese antiviral drugs such as busulfan anti-inflammatory oral solution or antiviral oral solution, which will have a good effect.