Xi Xin, 1lb

Primary Actions and Uses

• Releases the exterior and disperses cold: For exterior wind-cold with body aches, headache, and nasal congestion, especially when accompanied by dampness.
• Alleviates pain: For headache, toothache, or Bi syndrome from wind-cold-dampness.
• Warms the lungs and transforms thin mucus: For cough and wheezing with copious thin sputum due to cold phlegm.
• Unblocks the nasal orifices: For nasal congestion or loss of smell.

Context and Traditional Notes

• Acrid and warm; enters the Lung, Heart, and Kidney channels. Classified in TCM as a warm, acrid herb that releases the exterior.
• Because of its potency and toxicity in large doses, it is used in small amounts and often combined with other exterior-releasing herbs.
• Contains aristolochic acid in some species; sourcing from safe, verified species is essential.