Influenza A is usually the nail type influenza virus. If you are infected with the nail-type influenza virus, you can blow an electric fan if your condition is gradually under control. However, if the condition is still in the flare-up stage and not in a hot environment, electric fans are not recommended. After getting influenza A virus, patients will have obvious nasal congestion, runny nose, fever, sore throat, etc., and body temperature will gradually rise, and may also be accompanied by general weakness, nausea and vomiting, abdominal pain and diarrhea, and other symptoms. At this time, if you are not in a high temperature environment, it is not recommended to blow the fan, if the environment temperature is too high, you can turn on the fan to promote air circulation. If the condition has been gradually controlled, the body has no obvious discomfort, or the clinical symptoms are less severe, then the patient can blow the fan, but should not blow the fan directly, try to control the time when blowing the fan, to avoid triggering other symptoms of physical discomfort. If you have fever, you should go to the fever clinic of the hospital and follow the doctor’s instructions for standardized treatment, and during the treatment period, you should be diligent in ventilation, disinfection and wearing masks to prevent the spread of the disease.