When a child has a bad cough, the first thing to look for is the cause of the cough, which is usually due to a respiratory infection. The most common diseases of respiratory infections are bronchitis and pneumonia. The most common pathogens are bacteria, viruses, or mycoplasma. If it is a bacterial infection, you can take penicillin drugs or cephalosporins. If it is a mycoplasma infection, you can take azithromycin, roxithromycin or clarithromycin, all of which can treat the underlying cause, and with cough medicines. The cough medicine includes compound forcodine and etanercept, and the Chinese medicine includes pediatric lung cough granules and pediatric asthma oral solution. You can also do nebulizer inhalation, such as budesonide, salbutamol or ipratropium, which can relieve your child’s cough.