Patient Wu, 68 years old. He has had a chronic cough for more than 10 years, with no abnormal blood count and no abnormality on chest x-ray. He has a cough with morning lifting, mucous sputum, dry mouth and throat, occasional lumbar pain, red tongue, slightly greasy coating, and slow pulse. Evidence: deficiency of lung yin, loss of lung moistening and descending; treatment is to resolve phlegm and stop cough, nourish yin and moisten the lung. Prescription: Smallpox Powder, Bupleurum, Baizhen, Scutellaria, Radix Scutellariae, Rhizoma Polygonati, Rhizoma Polygonati, Almond, Peach kernel, Radix Platycodon, Licorice. 7 doses, decoction in water. 1 week later, after taking the above, the sputum volume decreased, with occasional cough and still dry mouth. The previous prescription was modified by removing Scutellaria baicalensis and Radix Bupleurum, and adding Radix et Rhizoma Radix, Radix et Rhizoma Ginseng and Radix et Rhizoma Macrocephala.