Five-month-old babies cough a little, may be due to respiratory tract infection. If the baby’s cough is not serious, there is no sneezing, runny nose, nasal congestion or fever these symptoms, you can orally eat cough medication, such as pediatric lung cough particles, pediatric asthma oral solution, pediatric cough syrup, etc., which can alleviate the symptoms. If the baby cough for more than 3 days, oral these drugs are still ineffective, there may be a combination of bacterial infection or mycoplasma infection, which needs to be added to some anti-inflammatory drugs, you can orally eat cephalosporin anti-inflammatory drugs or azithromycin, erythromycin, and so on. At the same time, regardless of the length of the cough, you can give the baby nebulized inhalation treatment, you can nebulized inhalation budesonide, terbutaline, these two drugs can be used alone or can be used jointly.