A dry cough with a scratchy throat is not necessarily a new coronavirus, but can also be caused by a common viral or bacterial upper respiratory infection. 1. A small number of patients infected with the new coronavirus do not have obvious clinical symptoms and can be potential transmitters. Mild patients may present with symptoms such as low-grade fever, mild malaise, and disturbances in the senses of smell and taste. 2. The main manifestations of novel coronavirus infection are fever, dry cough, and malaise. The first symptom can be loss of smell and taste, etc. A few patients may also have nasal congestion, runny nose, sore throat, conjunctivitis, myalgia, diarrhea and other symptoms. Severe patients often develop respiratory distress or hypoxemia one week after the onset of the disease, which can cause complications such as acute respiratory distress syndrome in severe cases. It is important to note that patients with severe and critical illness may have low to moderate fever or even no fever. 3. Upper respiratory tract infections caused by common viruses or bacteria can also cause patients to have dry cough and itchy throat due to the stimulation of inflammatory secretions in the throat, and they can go to the hospital to check the blood routine. If the white blood cells are elevated, it can be treated with cephalosporin antibiotics under the guidance of the doctor; if the white blood cells are not high, it can be treated with oral antiviral solution. Dry cough and itchy throat can be caused by a variety of reasons, if there is a history of close contact with patients with new crown pneumonia, it is important to consult a doctor in a timely manner. Tip: The terms “new coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.