More illnesses are associated with nasal congestion and sneezing. Nasal congestion and sneezing are not necessarily new coronavirus pneumonia or a more specific manifestation of the disease. Common colds, bacterial colds or gastrointestinal colds, allergic or epidemic viral colds, and fever, even after exposure to cold air, may cause nasal congestion and sneezing. A small number of novel coronavirus pneumonia may present with nasal congestion and sneezing, but the main symptoms are still fever, dry cough, and malaise, and khat symptoms such as nasal congestion, sneezing, or coughing are not considered diagnostic for novel coronavirus, and certainly not specific indicators. Therefore, nasal congestion and sneezing cannot be considered as novel coronavirus pneumonia. Therefore, it is necessary to combine other symptoms, including exposure history, CT examination and other nucleic acid tests, etc. Content source: Dr. You Lai