2-year-old baby cough may be due to upper respiratory tract infection, whooping cough, etc., according to the different causes can be taken pediatric black cohosh clear heat granules, cetirizine and other drugs. 1. Upper respiratory tract infection: cough, sneezing, nasal congestion, runny nose and other manifestations. Generally no special medication is needed, most can be self-healing, such as the presence of bacterial infections, the use of amoxicillin, cefixime and other antibacterial drugs. 2. Pertussis: an acute respiratory infection caused by Bordetella pertussis. It is clinically characterized by paroxysmal spasmodic cough with a deep and long “chicken” like inspiratory roar. Erythromycin, azithromycin and other drugs can be used for pathogenic bacteria; cough symptoms can be used for pediatric black cohosh clear heat particles, dextromethorphan, compound forcoding oral solution and other cough medications. There are many other causes of coughing in 2 year old babies, no matter what the cause of the cough, should be in symptomatic treatment at the same time as the treatment of the primary disease. It is recommended to seek medical attention in time to avoid drug conditions. All of the above drugs should be used under the guidance of a doctor, avoid self-medication.