More than 3 months of the baby cold runny nose diagnostic considerations for acute upper respiratory tract infection, it is respiratory viral infections caused by the treatment of the main attention to the following points: First, for the cause of antiviral therapy, you can use ribavirin spray or interferon spray local throat spray antiviral therapy, you can also take pCms class of antiviral medicines, such as antiviral oral solution and so on. Second, symptomatic supportive treatment, you can buy saline nasal spray to clean nasal secretions, you can also take Chinese medicine class of baby cold punch. Third, we should pay attention to good diet and environmental management, because the cold and runny nose sensitivity should be avoided to enter the environment of easy allergies. If breastfeeding mothers to avoid milk, eggs and other common allergens intake, if eczema belongs to the allergic body, but also need to avoid possible allergens food intake.