Symptoms of cold and flu usually include fever, cough, nasal congestion, etc. General treatment can be used. After being affected by cold, the local defense function of the respiratory tract decreases, leading to the invasion of cold virus, which multiplies in the respiratory tract and may cause acute inflammation of the nasopharynx, which manifests itself as coughing, nasal congestion, sneezing, runny nose, itching of the throat, and dullness of the sense of taste, and other symptoms. Patients with colds are usually self-healing and need to be given general treatment, such as should drink plenty of warm boiled water and eat fruits and vegetables appropriately. When cold symptoms are severe or poorly tolerated, acetaminophen is recommended to reduce symptoms. Cold and flu patients are advised to seek prompt medical attention to avoid aggravation of their condition.