More than 2 months baby cough may be environmental dryness and other physiological factors, this time need to pay attention to adjust the indoor temperature and humidity; may also be associated with acute upper respiratory tract infections, allergic cough and other factors, can be used for general treatment and drug therapy. 1. Environmental dryness: when infants live in a dry environment, there may be a cough performance, at this time there is no fever, runny and other discomforts, usually a mild cough, no progressive aggravation, adjust the indoor temperature and humidity as appropriate, change the cause of the cough can be relieved. 2. Acute upper respiratory tract infection: will also make the baby will appear cough, some babies accompanied by fever, such as viral infections, generally do not need special use of antiviral drugs. If the combination of bacterial infection, should follow the use of cefixime, amoxicillin and other antibacterial drugs; if the influenza virus caused by the application of oseltamivir and other antiviral drugs. 3. Allergic cough: avoid suspected allergens in daily life, such as dust mites, pollen, animal hair, second-hand smoke, etc. If necessary, follow the doctor’s instructions to use saline, budesonide and other nebulized inhalation, to relieve the symptoms. All of the above drugs should be used under the guidance of a doctor, avoiding self-medication. 2-month-old babies have many other causes of cough, it is recommended to consult a doctor in a timely manner, and be evaluated and treated by a specialist.