Influenza A can be appropriate fan, but the temperature should not be too low. Influenza A is an upper respiratory tract infection caused by influenza A virus, mainly characterized by high fever, sore throat, runny nose, cough, headache, fatigue, generalized muscle aches and pains. When blowing a fan, you need to pay attention to maintain the appropriate temperature, do not blow directly or close to the fan, to avoid aggravation of the condition. When blowing a fan indoors, you need to open the window regularly to keep the indoor air circulating, to avoid a large number of viruses multiply and aggravate the condition. During the period of illness, it is recommended that patients wash their hands diligently, pay attention to personal hygiene to avoid cross-infection, maintain sufficient sleep, consume more vitamin-rich foods, drink more water, maintain indoor ventilation, and avoid going to crowded places. It is worth noting that during the period of influenza A, you can blow the fan appropriately, during this period of rest, avoid exertion, eat a light diet, standardize the medical treatment, under the guidance of the physician to use medication.