In clinical treatment of upper respiratory infections, it is essential to analyze the specific course of the illness. In the early stages of viral infections, if symptoms such as cough, nasal congestion, and runny nose are present, antihistamines and antiviral medications for clearing heat and detoxification can be used for symptomatic treatment, such as 999 Cold Remedy Granules, antiviral oral liquids, etc. In later stages, if there is a concurrent bacterial infection with thick, yellow phlegm, treatment can include the combined use of antibiotics. Amoxicillin or cephalosporin antibiotics are possible choices.