Source: Danxi Xinfa (Danxi’s Experiential Therapy).
  
Ingredients:
No. 1 Huangbai (Cortex Phellodendri) (backed);
No. 2 Cangzhu (Rhizoma Atractylodis) (backed);
In equal dosage.
  
Administration:
Grind the above drugs into fine powder; take orally 6 g each time with 2 drops of ginger juice and warm boiled water. Or prepare it into pills entitled Ermiao Wan and take 6 g each time with warm boiled water.
 
Actions:
Clearing away heat and drying dampness.
       
Clinical Application:
This recipe is indicated for downward flow of dampness and heat, marked by painful tendons and bones, or flaccid feet, or swelling and painful feet and knees, or leukorrhagia, or eczema of genitals, scanty dark urine, greasy yellowish fur, soft and rapid pulse. It is applicable to arthritis, eczema of scrotum, vaginitis and other diseases that affect the lower body and pertain to damp heat syndrome. In case of numbness and flaccidity of feet and knees, Niuxi (Radix Achyranthis Bidentatae) may be added to reinforce the joints, waist and knees, and if made into pills, they are named Sanmiao Wan.

If the above syndrome is concomitant with swelling and pain of feet and knees, difficulty in bending and stretching movement, Yiyiren (Semen Coicis) can also be added to induce diuresis and activate tendons, forming another recipe entitled Simiao Wan. In case of eczema of the genitals, add Chixiaodou (Semen Phaseoli) and Fuling (Poria) to clear away heat and dampness as well as relieve eczema.
 
Elucidation:
All the syndromes are caused by dampness and heat, which either flows into tendons, or muscles, or genitals or muscular striae. It should be treated by clearing away heat and drying dampness. No. 1, bitter and cold in nature, is used as monarch drug to remove dampness and heat from the lower energizer. No. 2 is warm and bitter in nature, so it can dry dampness and reinforce the spleen to make dampness off without generating again. Simple but effective, this recipe is commonly used for treating damp heat syndrome of the lower-energizer.

Cautions:
This recipe has an equal efficacy both in clearing away heat and eliminating dampness, thus it is not suitable for syndrome with more dampness than heat.