Two-year-old baby cough is mostly due to allergic cough, cough variant asthma, upper respiratory tract infection, pneumonia and other causes, need to target the cause of the treatment, including the use of anti-allergy drugs, asthma drugs, cough medication, antibacterial drugs and other treatments as prescribed by the doctor. 1. Allergic cough: first of all, you need to stay away from allergens, if the symptoms are not relieved, you can follow the doctor’s instructions to use antihistamines such as cetirizine hydrochloride drops. 2. Cough variant asthma: you can follow the doctor’s instructions to use asthma drugs, such as salbutamol, amlodipine, ipratropium bromide and so on. 3. Upper respiratory tract infections: mostly caused by viral infections, generally supportive treatment can be, combined with bacterial infections need to use antibiotics for anti-infective treatment, such as penicillin, cefixime and so on. 4. Pneumonia: according to the pathogen need to choose the appropriate antibiotic treatment, including cephalosporin antibacterial drugs, penicillin antibacterial drugs, macrolide antibacterial drugs for treatment, such as amoxicillin, cefaclor, azithromycin, etc., and if necessary, need to be intravenous antibiotics. Viral infections can also lead to pneumonia and require active supportive treatment as prescribed by the doctor. In addition, there are other reasons that can lead to the symptoms of cough in two-year-old babies, you need to consult a doctor to clarify the diagnosis of targeted treatment, to avoid delaying the treatment time. All of the above medications should be used under a doctor’s supervision.