First of all, pneumonia and bronchitis are two different diseases, and the focus of medication is different. The most common medications for pneumonia are anti-inflammatory, phlegm-cleansing medications, and occasionally anti-viral medications. The main medications to reduce phlegm are Ambroxol hydrochloride tablets, acetylcysteine tablets, and Fodoristan. Anti-inflammatory drugs are commonly used to treat bacterial infections such as penicillin and cephalosporins, mycoplasma infections such as azithromycin or quinolones, and viral pneumonias, which may require antiviral drugs. Bronchitis is caused by viral infections, and only rarely by bacterial or mycoplasma infections. If it is bacterial or mycoplasma infection, it will be treated with antibacterial drugs as mentioned above. The main application of bronchitis is in fact the drugs for relieving cough and resolving phlegm. If the patient’s cough is more severe, the symptomatic application of cough suppressant drugs, such as dextromethorphan, Pentoxyverine, cotrimoxazole and so on. If the patient is more phlegm, phlegm thick, not easy to cough out, you can also take Ambroxol tablets, acetylcysteine tablets and so on.