Presenter: Lecture on single herbs that drain fire.
Resources: Website links for notes and flashcards.
Category Overview: Starts with the broader category of herbs that clear heat, which has many sub-categories, all aimed at treating different types of heat in various body parts.
Key Concept: These herbs are typically the coldest, used to treat intense, interior heat.
Treatment Strategy
Cool Acrid Herbs: Promote sweating to push heat out (exterior heat).
Herbs That Drain Fire: Use cold, bitter herbs to drain intense interior heat.
Fire in Context: Intense form of heat; affects organs differently (lungs, stomach, heart, liver), presenting as various symptoms.
Types of Heat
Qi Level Heat: Characterized by the Four Bigs (Big fever, Big sweat, Big thirst & vexation, Big pulse).
Yang Ming Channel Heat: Similar to Qi level heat with the Four Bigs.
Symptoms Differ by Organ: Lung (cough, phlegm), Stomach (hunger, bad breath), Heart (shen disturbances), Liver (eye disorders).
Important Herbs in This Category
Shi Gao (Gypsum Fibrosum)
Functions: Clears Qi level heat, yang ming channel heat, lung heat (cough, thick phlegm), and stomach heat (hunger, bad breath, mouth sores, etc.).
Properties: Very cold, sweet and acrid.
Use: Effective in larger dosages (15-60g).
Precautions: Can damage the spleen; hence, careful monitoring is needed.
Zhi Mu (Anemarrhena Rhizoma)
Functions: Clears Qi level heat, clears lung and stomach heat, clears deficiency heat (tidal fever, night sweats, etc.), tonifies yin.
Properties: Bitter and sweet.
Usage: Often used in combination with Shi Gao.
Zhi Zi (Gardenia Fructus)
Functions: Clears heat from all three jiao, treats shen disorders due to heat, clears damp heat (especially for Lin syndrome and jaundice), cools the blood and stops bleeding, can be used topically.
Properties: Cold, bitter.
Dan Zhu Ye (Lophatheri Herba)
Functions: Clears heart heat (shen problems, urination problems due to heart heat pouring into the small intestine).