If the cough is caused by a viral infection and the infection is confined to the upper respiratory tract, oral antiviral medication and cough suppressant and phlegm-relieving medications are effective. Oral medications can be chosen from the Chinese category, such as Pudilan Anti-inflammatory Oral Liquid, Blue Scutellaria Oral Liquid or Four Seasons Anti-Viral Combination, which are all effective, or if you can choose Western medications, you can also use Oseltamivir and Ribavirin granules. As for the symptoms of cough, it is recommended to use Ambrotero Oral Solution, Ambroxol Hydrochloride, or Lung Power Cough Combination, or Compound Licorice Combination for cough relief. If the cough caused by a viral infection has caused an infection in the lower respiratory tract, such as bronchitis or pneumonia, the effect of oral medications is often insufficient. In this case, intravenous antibiotics or antiviral drugs are also needed, because in the later stages of viral infections, bacterial infections are often combined with antibiotics, which are also necessary.