Cough, runny nose and sore throat are upper respiratory tract symptoms that are usually seen in colds, especially influenza. Some patients may also have general discomfort, such as body aches, weakness, loss of appetite and fever, which are consistent with the characteristics of influenza. Therefore, patients can take oral cold medications, such as Baijiahei and Contec, which can generally be greatly improved after about 1 week of treatment, and can also be treated with brown sugar and ginger water as a medicinal diet. Usually from the nose to the alveoli are considered part of the respiratory tract, and the upper respiratory tract starts from the nose to reach above the tracheal cartilage.