Taraxacum is not very useful in reducing fever. Pu Dilan is mainly applicable to upper respiratory tract infections, can correct the symptoms of fever, but it does not directly reduce fever, nor does it have the effect of rapid reduction of fever. Pu Dilan has a pharyngeal, cool blood, and detoxification effect, in the clinic often for respiratory tract infections, as well as the big head plague, dengue, skin diseases, etc. have a certain therapeutic effect, for viral infections, bacterial infections have a certain inhibitory effect. At the same time, Pu Dilan can also improve human immunity. In clinical application, Pu Dilan is often combined with other drugs to play a role, the more common is honeysuckle, forsythia and so on. Clinically, Pu Dilan must be noted in the application process, it has a certain degree of coldness, for the spleen and stomach weak people, as well as the usual thin people, children, the frail elderly should be used with caution.