The cough caused by bronchitis in 8 month old babies is often caused by bronchitis infection, if the pathogens are more toxic will appear more obvious clinical symptoms, the pathogens that cause bronchitis in babies include bacteria, viruses, mycoplasma, chlamydia, etc., so choose drugs that target the pathogens to control the infection. Most of the baby bronchitis is caused by viral infection, you can choose oseltamivir, aciclovir, diamoxiclav and other drugs to treat, if it is caused by bacteria, mycoplasma, chlamydia infection can choose cephalosporin, penicillin, azithromycin and other drugs to treat. For cough medicine, you can choose acute syrup, lung power cough combination, etc. At the same time, keep the humidity in the room not too dry, which can also reduce the symptoms of your baby’s cough.