A subcategory of CHRONIC OBSTRUCTIVE PULMONARY DISEASE. The disease is characterized by hypersecretion of mucus accompanied by a chronic (more than 3 months in 2 consecutive years) productive cough. Infectious agents are a major cause of chronic bronchitis.

The recommended herbs are:

• Pericarpium citri reticulatae,
• Rhizoma pinelliae preparata,
• Radix scutellariae,
• Radix bupleuri,
• Radix asteris,
• Flos farfarae, etc.