Source: Jingyue Quanshu (Jingyue’s Complete Works).
  
Ingredients:
No.1  Shigao (Gypsum Fibrosum) 15 - 30 g
No.2  Shudihuang (Radix Rehmanniae Praeparatae) 9 - 30g
No.3  Maimendong (Radix Ophiopogonis) 6 g
No.4  Zhimu (Rhizoma Anemarrhenae) 5 g
No.5  Niuxi (Radix Achyranthis Bidentatae) 5 g
 
Administration:
Decoct the above drugs for oral administration.

Actions:
Clearing away stomach-heat and nourishing yin.

Clinical Application:
This recipe is suitable for syndromes of stomach-heat and yin deficiency, marked by toothache, odontoseisis, dysphoria with thirst, or diabetes, polyorexia, dry and red tongue with yellowish dry fur, thready and rapid pulse. It is applicable to gingivitis, acute stomatitis, glossitis, and diabetes, etc., which belong to syndromes with stomach-heat and yin deficiency. In case of dominant toothache and thirst due to excessive fire in the stomach, Huanglian (Rhizoma Coptidis) and Zhizi (Fructus Gardeniae) can be added to strengthen the effect of purging fire. In case of dominant heat syndrome of xuefen, manifesting profuse gingival bleeding, ingredient No. 2 can be replaced with Shengdihuang (Radix Rehmanniae Recens ) and Xuanshen (Radix Scrophulariae ) to enhance the effect of removing heat from blood.

Elucidation:
The syndrome results from flaming up of stomach-fire due to deficiency of kidney-yin, and should be treated by purging fire from the stomach and nourishing kidney-yin. Ingredient No. 1 is used as monarch drug to clear away heat from the stomach. Ingredient No. 2 acts as minister drug with the effect of invigorating kidney-yin. When the two are combined, the desirable effects of clearing away fire and nourishing body fluid can be yielded. Ingredient No. 4 is used to reinforce the effect of No. 1 in purging fire and heat from the stomach, and No. 3 to help No.2 nourish kidney-yin. Ingredient No. 5 leads heat and blood downward. The above three together serve as adjuvant drug.

Both Qingwei San and Yunv Jian can be applied in the treatment of toothache due to stomach-heat. The former is fit for excess syndrome with upward invasion of stomach-fire, while the latter for excess syndrome of upward invasion of stomach-fire complicated with yin deficiency.