Colds are caused by viruses and are categorized into common colds and influenza. The common cold is self-limiting when it is mild, and when it is serious, you can take medicines such as phenol pseudo-maize tablets; influenza is contagious, and you can take medicines such as oseltamivir granules. 1. Common cold: most of the adenovirus, parainfluenza virus and other infections caused by the human body, the main clinical manifestations of fever, headache, cough and other symptoms, most of the symptoms are relatively mild and self-limiting, about a week can be cured by themselves, generally do not need special treatment. If the symptoms of fever can be appropriate to take antipyretic drugs such as ibuprofen capsules and other relief, such as nasal congestion, sneezing symptoms are obvious, you can take phenol pseudo-maize tablets and other drugs. For patients with immunodeficiency, antiviral drugs such as oseltamivir can be considered. 2. Influenza: It is mainly caused by influenza A, B and C viruses infecting the human body, and the symptoms are usually severe, mainly manifested as high fever, generalized fatigue, muscle pains, etc. It is recommended to use antiviral drugs such as oseltamivir granules, which can inhibit the release of viruses as well as reduce the spread of viruses. It is recommended to go to the hospital in time to clarify the cause of the disease. Under the guidance of the doctor to comply with the medical prescription treatment.