The effect of Pu Di Lan Anti-inflammatory Oral Liquid for the treatment of cough is still relatively satisfactory. The drug itself is a compound Chinese patent preparation in which the main ingredients of the drug formula contain dandelion, panax quinquefolium, bitter dillin, scutellaria and so on. This drug can clear heat and detoxify, anti-inflammatory and swelling, clinically can be used to treat mumps, pharyngitis, tonsillitis and so on. And in clinical research, this drug itself has a certain inhibitory effect on some viruses, and also including some bacteria, such as Escherichia coli and Bacteroides fragilis. Therefore, it is effective for coughs caused by inflammation of the respiratory tract caused by these pathogens.