Chinese Lizardtail Herb

Traditional Use

Primary Actions

• Promotes urination and drains dampness for swelling and difficult urination - San Bai Cao is a damp-clearing herb used when edema, puffy limbs, scanty urine, turbid urine, or lower-body fluid retention arise from damp-heat or water stagnation rather than pure deficiency cold.
• Clears heat and resolves toxicity from the skin and flesh - traditional use includes infected sores, carbuncles, furuncles, weeping eczema, and other damp-toxic lesions in which the herb is taken internally or applied externally as a wash or poultice.
• Clears damp-heat from the lower burner - classical and folk indications include leukorrhea, urinary tract irritation, and pelvic damp-heat patterns where heat, discharge, swelling, and obstructed urination occur together.
• Reduces jaundice and damp-heat obstruction affecting the Liver and biliary pathways - regional practice uses San Bai Cao when yellowing, dark urine, edema, and inflammatory damp-heat signs cluster together.

Secondary Actions

• Because San Bai Cao is both draining and detoxifying, it often bridges internal damp-heat patterns and external skin disease better than herbs that only clear heat or only induce urination.
• Older folk and regional practice sometimes extends the herb to urinary gravel and stone-type problems, consistent with later experimental work on stone-component solubility.

Classic Formulas

• San Bai Cao with Yin Chen Hao and Che Qian Cao - a common damp-heat and jaundice combination used when edema, dark scanty urine, and yellow discoloration point to combined water retention and biliary damp-heat.
• San Bai Cao with Jin Yin Hua and Pu Gong Ying - toxin-clearing pairings used for carbuncles, furunculosis, breast-area swelling, or hot suppurative lesions that need both internal heat clearing and external detoxification.
• San Bai Cao wash with Ku Shen or Huang Bai - external application logic for damp-toxic eczema, itching, and weeping lesions where the herb's damp-draining and anti-inflammatory actions are used topically.

Classical References

• The modern Chinese Pharmacopoeia, summarized in a Planta Medica review, records Saururi herba as the dried aerial part of Saururus chinensis and lists edema, dysuria, infected suppurative skin, and eczema as core indications.
• A broad PubMed review of the genus Saururus summarizes long-standing traditional uses of Saururus chinensis for edema, beriberi, jaundice, leucorrhea, urinary tract infections, hepatitis, and tumors, showing that San Bai Cao has long been treated as a damp-heat and toxicity herb rather than a narrow single-indication medicine.
• IMPORT NOTE: the XLSX import called this entry 'rhizome or herb', but current pharmacopoeial usage standardizes San Bai Cao as Saururi Herba, the aerial part; folk and regional practice can include rhizome or whole-plant use, which likely explains the original import wording.