1. Key points of syndrome differentiation This recipe is often used to treat dry phlegm syndrome. In clinical application, the key points of syndrome differentiation are choking cough, difficulty in expectoration, dry throat and white and dry fur.

2. Add and subtract wind evil, throat itching and cough, breeze evil, mulberry leaves, almonds, cicadas, burdock and other changes. Dispersing lung qi and eliminating pathogenic factors can be added; Ophiopogon japonicus, Scrophularia, gypsum, etc. If the dryness is severe and the throat is dry and painful, you can add clearing dryness and moistening lung. For hoarseness and bloody sputum, peel of orange, Gaza Ginseng, Colla Corii Asini and Bletilla striata can be removed to nourish yin, clear lung, eliminate phlegm and stop bleeding.

3. Modern application can be used for patients with phlegm dryness syndrome such as tuberculosis and pneumonia.

4. Pay attention to cough caused by lung and kidney yin deficiency and excessive fire.

[addition and subtraction]

1. If pathogenic wind invades the lung, Folium Mori 10 Bitter Almond 8 and Radix Peucedani 8 can be added.

2. If dryness injures lung collaterals and bloodshot sputum, in addition to orange, Radix Glehniae 20 Ophiopogon japonicus 12 and Herba et Gemma Agrimoniae 12 are added.

3. Eight bitter almonds, eight mulberry bark 12 loquat leaves, and severe cough can be added.