Traditional Chinese Medicine - Sacred Lotus Arts Please Support
Chinese Medicine!
Chinese Herbs "The Kidneys control inspiration and the grasping of Qi"
Learn the Chinese Herbs!
TCM Herb Qualities
Tastes & Properties TCM Herb Explorer
General TCM Herbs
Drug Interactions Incompatible Herbs Toxic or Endangered Latin Name Notes

Zi Cao (Groomwell Root or Arnebia or Lithospermum)

Previous Herb in CategoryNext Herb in Category Herb 8 of 11 in Herbs that Cool the Blood

Cold Zi Cao (Radix Arnebiae seu Lithospermi)
Zi Cao Ruan Shown
Sweet, Cold
Radix Arnebiae seu Lithospermi
Tone Marks:
zĭ căo
Purple Herb


  • Clears Heat, Cools Blood, and Relieves Fire Toxins
    For Fire Toxins in the skin causing very dark purple rashes. This herb encourages the rash to erupt, used when diseases (like mumps or chickenpox) are not progressing.
  • Clears Damp-Heat Skin Lesions
    Used topically for skin lesions, vaginal itching, eczema, dermatitis, or burns.
  • Unblocks the Bowels and Invigorates the Blood
    For mild constipation from heat in the Blood, or used to treat amenorrhea and dysmenorrhea.

Contraindications and Cautions

  • Do not use in cases of measles. Caution in cases of spleen and stomach deficiency with loose stool.

Herb-Drug Interactions

  • This section is being researched, and is not completed.

Toxicity and Overdose

  • This section is being researched, and is not completed.


  • 3-9 grams.


  • Can be made into an ointment for use topically.