In summer, the heat can cause many patients to have difficulty falling asleep and extreme discomfort when sleeping. However, when blowing a fan at night, try not to blow directly on the body, which can easily induce problems such as peripheral facial neuritis and cold and fever, which may cause the patient’s scalp to become numb. So patients must avoid this problem when they sleep at night, blowing fans, and if it leads to facial nerve palsy, they need to come to the doctor in time, as well as treatment. If it causes the patient to have symptoms such as nasal congestion, coughing and sneezing, it should be considered to be caused by a cold, and symptomatic oral cold medication should be given.