What causes sore throat and cough?
Sore throat and cough are often signs of inflammation in the pharynx—i.e., an upper respiratory tract infection, commonly referred to as the “common cold.” Treatment may include over-the-counter cold medications.

Pharyngeal inflammation leads to localized congestion and edema. Accompanying the inflammatory process are classic signs—redness, swelling, heat, and pain—which collectively cause discomfort in the throat. Coughing typically results from irritation caused by this inflammation.
Additionally, the inflamed pharynx may produce inflammatory exudates, which further irritate the throat and trigger coughing. In addition to standard cold remedies, anti-inflammatory medications may also be used. Especially during the early stage of symptomatic cough—when viral infection is most likely—oral formulations such as Pudi Lan Anti-inflammatory Oral Liquid, Lan Qin Oral Liquid, or Siji Anti-viral Compound may be considered for treatment.

These medications possess not only antiviral activity but also antibacterial effects, making them highly effective against pharyngeal inflammation.