The first thing to look for in a 6-month-old baby with a cough is whether the cough is intense and whether there are any red faces, chicken-like echoes and vomiting when the cough is intense. It is also important to see if your baby has been coughing for more than a week. If the cough has been present for less than a week or is not particularly violent, it may be an upper respiratory tract infection and can be treated with Pudilan Oral Liquid and cough suppressant medications such as Pediatric Pulmonary Cough Granules and Ertan Jing. If your child has been coughing for more than a week, or if the cough is violent, sometimes the cough is easily spit out, or there is a chicken-like echo. Bacterial infections can be treated with cephalosporin and anti-inflammatory drugs, while viral infections do not have specific drugs. Mycoplasma infections can be treated with azithromycin, while whooping cough can be treated with erythromycin and cough suppressants.