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<record type="herb" updated="2026-09-18T16:36:59.601237+00:00">
  <source>Bencao Index</source>
  <source-url>https://bencaoindex.com/</source-url>
  <canonical>https://bencaoindex.com/herbs/deng-xin-cao/</canonical>
  <licence>Free to use and republish with visible attribution and a link back to the source page. The catalogue is a reference work and is knowingly incomplete; nothing in it is medical advice.</licence>
  <attribution-html>&lt;a href=&quot;https://bencaoindex.com/herbs/deng-xin-cao/&quot;&gt;Bencao Index&lt;/a&gt;</attribution-html>
  <names>
    <name type="pinyin">deng xin cao</name>
    <name type="chinese">灯心草</name>
    <name type="latin">Medulla Junci</name>
    <name type="english">juncus</name>
    <name type="japanese">tosh inso</name>
    <name type="korean">deungsimcho</name>
  </names>
  <category>Drain Dampness</category>
  <channels>
    <channel>Lung</channel>
    <channel>Heart</channel>
    <channel>Small Intestine</channel>
  </channels>
  <actions>
    <action>
      <summary>Promotes urination, leaches out Damp and relieves painful urinary dysfunction</summary>
      <indication>Excess Heat</indication>
      <indication>Hot, painful, dribbling urination with dark, scanty urine, usually from Damp-Heat in the Lower Jiao</indication>
    </action>
    <action>
      <summary>Clears Heart Heat, leads Fire downward and calms the Spirit</summary>
      <indication>Poor sleep in children (night crying, night terrors, restless sleep) with irritability that is worse at night and dark, scanty urine; it can be used on its own</indication>
      <indication>Heart and Kidneys failing to communicate, with insomnia and restless sleep</indication>
      <indication>Kidney Yin deficiency with Heart Fire</indication>
      <indication>Yin deficiency of the Heart and Kidneys</indication>
      <indication>Excess (Shi) Heat in the Small Intestine</indication>
    </action>
    <action>
      <summary>Clears Lung Heat</summary>
      <indication>Sore throat from Lung Heat; the charred herb eases the pain, taken internally or applied topically</indication>
    </action>
    <action>
      <summary>Cools the Blood and stops bleeding</summary>
      <indication>Bleeding from Heat, using the charred herb; unprocessed, it drains water and clears Heat instead</indication>
    </action>
  </actions>
</record>
