Cough and fever may be influenza, viral cold, etc. 1. Influenza: Influenza is an acute respiratory infectious disease caused by influenza virus. The virus exists in the patient’s respiratory tract and is transmitted through droplets when the patient coughs or sneezes. It can cause fever, body aches, dry cough, sore throat and other discomforts. 2. Viral colds: caused by viral infections, such as rhinovirus and respiratory syncytial virus. Common causes include colds, climate change, overwork, alcohol consumption and other triggers, which reduce the local defense function of the respiratory tract and further invasion of pathogens, leading to viral colds. It may cause symptoms such as nasal congestion, cough and sore throat. Cough and fever may also be caused by bronchitis, pharyngitis, pneumonia, etc. in addition to colds. Patients should consult a doctor in time, and under the guidance of a professional doctor, choose a specific and effective treatment method according to the actual condition.