Pharmaceutical Latin: Indigo Naturalis
Common English: Indigo
Natural Indigo
Herbs That Clean Heat and Purge Fire: Herbs That Clean Heat and Detoxify; Target Warm and Heat Diseases
Taste Temperature Entering Meridians Dosage
Use in pill or powdered form and add to strained decoction
Actions Indications/Syndromes

Clears Heat, resolves Fire toxicity, cools the Blood and reduces maculae

Maculae due to Blood Heat (Xue Stage Heat)

Can be used alone for bleeding due to Blood Heat, especially epistaxis

Clears Heat, resolves Fire toxicity, cools the Blood, disperses Stagnation and reduces swelling

Throat inflammation, dysphagia, sores of the mouth or mumps due to blazing Heat (internal or topical)

Drains Liver Fire, dispels Summerheat and extinguishes Wind to stop tremors

Convulsions, red eyes, sore throat and other manifestations of Heat, especially Summerheat, affecting the Liver

Clears Liver Fire, drains Lung Heat and cools the Blood

Cough due to Lung Heat

Cough and chest pain due to Liver Fire attacking the Lungs

  • Do not use if the Heat is due to Yin Deficiency Fire
  • Use caution for those with Deficiency Cold of the Stomach.
  • Overdose may cause nausea, vomiting, abdominal pain and hematochezia.
  • In rare cases this herb may affect the Liver function, decrease platelet count and cause bone marrow suppression.
  • Patients who are allergic to sulfonylureas such as: tolbutamide (Orinase), glipizide (Glucotrol) and glyburide (DiaBeta/Micronase) and sulfonamides such as: sulfadiazine, sulfisoxazole, sulfamethoxazole, trimethoprim/sulfamethoxazole (Bactrim/Septra), and erythromycin/sulfisoxazole (Pediazole) may also be allergic to Da Qing Ye.

Rx. Rehmanniae
Sheng Di Huang
Gypsum Fibrosum
Shi Gao
Rz. Cimicifugae
Sheng Ma

Sm. Armeniacae
Xing Ren

Cx. Phellodendri
Huang Bai
Rx. Glycyrrhizae
Gan Cao

Maculae due to warm toxin with a flooding, rapid pulse.

Epistaxis or hematemesis due to Blood Heat.

Sores of the mouth and tongue.

Bing Pian
Ming Fan

Cx. Phellodendri
Huang Bai
Gypsum Fibrosum
Shi Gao
Concha Meretricis/Cyclinae Preparata
Duan Ge Qiao

Hua Shi
Rx. Glycyrrhizae
Gan Cao

Topically for oral sores that do not heal.

Topically for severe itching from eczema.

Summerheat with red eyes, sore throat and mouth sores.

Rx. Gentianae
Long Dan Cao
Rz. Coptidis
Huang Lian

Calculus Bovis
Niu Huang
Ram. Uncariae cum Uncis
Gou Teng

Concha Meretricis/Cyclinae
Ge Qiao

Restlessness and convulsions from Liver Fire.


Febrile convulsions in children.

Liver Fire attacking the Lungs with cough, chest pain and blood streaked sputum.

Fu Shi
Sm. Trichosanthis
Gua Lou Ren
Bul. Fritillariae Cirrhosae
Chuan Bei Mu

Sm. Trichosanthis
Gua Lou Ren
Bul. Fritillariae Thunbergii
Zhe Be Mu
Fu Shi

Bing Pian
Cx. Phellodendri
Huang Bai

Cough from Lung Heat with yellow, viscous and difficult to expectorate sputum.

Lung Heat.

Topically for eczema and oral ulcers.

Cacumen Platycladi
Ce Bai Ye
Rz. Imperatae
Bai Mao Gen

Rx. Scrophulariae
Xuan Shen
Flos Lonicerae
Jin Yin Hua
Fr. Forsythiae
Lian Qiao




Sore throat.


  1. This herb is made from processing Fol. Isatidis Da Qing Ye.
  2. It is mainly used for treating high fevers in children.
  3. This herb clears Heat, resolves toxicity, cools the Blood, reduces maculae, drains the Liver, clears the Lungs, dispels Summerheat and settles convulsions.
  4. It is used topically for inflammation of the mouth and throat including mumps.
  5. It cools Heat from pathogenic invasion.
  6. It cools Lung Heat and Liver Fire.
  7. By cooling the Liver, it cools the Blood.
  8. It is particularly effective for nosebleeds internally or topically.
  9. This herb is especially indicated for dysphagia.
  10. It resolves toxicity from all types of medicinals.
  11. This herb has been shown to inhibit the growth of cancer cells.
  12. For unperforated scrofula, crush Qing Dai and Hb. Portulacae Ma Chi Xian and apply to the lesion daily.
  13. Qing Dai, Fol. Isatidis Da Qing Ye and Rx. Isatidis Ban Lan Gen all originate from the same plants, cool Heat in the Blood, and reduce skin blotches. Qing Dai is best for toxic sores due to Fire and Heat, rashes from Warm toxins, hemoptysis and hematemesis and childhood convulsions. Da Qing Ye and Ban Lan Gen both cool Heat toxin in the Heart and Stomach, but Da Qing Ye is usually used for rashes from Warm toxin, while Ban Lan Gen is used for massive head febrile disorders and throat obstruction due to mumps.