Dao Chi San

January 15, 2026 admin

[Source]

“Xiao Er Yao Zheng Zhi Jue”

 [Composition]

Raw Rehmannia, Akebia stem, Licorice root tip, Bamboo leaf
(4)

 [Category]

<Clearing Heat and Cooling Blood>: Raw Rehmannia

<Tonifying Spleen and Middle Jiao>: Raw Licorice

<Clearing Heat and Purging Fire>: Bamboo leaf

<Promoting Urination and Draining Dampness>: Akebia stem

[Efficacy Analysis]

“Yi Fang”: This is a formula for the Shao Yin and Tai Yang channels of the hand. (1) Sheng Di Huang: Cools Heart blood. (2) Zhu Ye: Clears Heart Qi. (3) Mu Tong: Descends Heart fire and enters the Small Intestine. (4) Gan Cao Shao: Reaches the penile area and stops pain, by assisting in guiding the fire of Bing Ding out through the Small Intestine. The Small Intestine is associated with Bing fire, and the Heart with Ding fire. Heat in the Heart transfers to the Small Intestine, which is like removing the firewood from under the pot. “Shan Bu”: Red color belongs to the Heart. Dao Chi (Guiding the Red) means guiding the heat of the Heart channel out through the Small Intestine, as the Heart and Small Intestine are exterior-interior related. The symptoms observed such as mouth sores, tongue ulcers, yellow-red urine, pain in the penile area, and difficult or painful urination are all signs of Heart heat transferring to the Small Intestine. Therefore, Huang Lian is not used to directly purge the Heart, but Sheng Di Huang is used to nourish the Kidney and cool the Heart, Mu Tong facilitates the Small Intestine, and is assisted by Gan Cao Shao to easily drain the heat from the lowest part and relieve the pain in the penile area, thus guiding the heat of the Heart channel. This formula is suitable for cases of deficient water and non-excess fire, as it promotes urination without harming Yin, and purges fire without damaging the Stomach. If there is excess heat in the Heart channel, Huang Lian and Zhu Ye should be added, and in severe cases, Da Huang should also be added, which is also a method of removing the firewood from under the pot.

 [Functions]

Clears Heart fire, promotes urination, and promotes urination and resolves Lin syndrome.

 [Indications]

Excessive Heart fire, thirst, facial redness, vexation and heat in the chest, thirst with desire for cold drinks, or Heart heat transferring to the Small Intestine, resulting in mouth and tongue sores, scanty and painful urination, stinging pain during urination, blood strangury, and Lin syndrome etc. “Yi Fang”: Fire in the Small Intestine, leading to red urine, strangury pain, facial redness, delirium, mouth and tongue sores, grinding of teeth and thirst. “Shan Bu”: Heart heat, mouth and tongue sores, yellow-red urine, pain in the penile area, and difficulty with Lin syndrome due to heat.

 [Applications]

Myocarditis, urinary system diseases, postpartum urinary retention, oral inflammation, skin diseases, ophthalmological diseases (conjunctival congestion), etc.

 [Mnemonic]

Stay up all night playing (Tong Xiao Di Wan Zheng Ye – phonetic for Tong Shao Di Ye).

 [Modifications]

(1) If Heart fire is excessively strong, add Coptis chinensis to enhance the action of clearing Heart heat and purging fire. (2) If Yin deficiency is severe, add Ophiopogon japonicus to enhance the action of clearing Heart heat and nourishing Yin. (3) If urinary strangury is severe, add Cardamine fallax, Dianthus superbus, Talc, etc., to enhance the diuretic and Lin-resolving actions. (4) If there is blood strangury, add Imperata cylindrica rhizome, Small Thistle, Eclipta prostrata to cool blood and stop bleeding. (5) If constipation is also present, add Rhubarb to purge heat and relieve constipation.

 [Pharmacology]

Anti-inflammatory, antibacterial, diuretic, and detoxifying effects.

 

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