About This Herb*
Traditional Chinese Medicine background and properties
Herb Description*
Gong Lao Ye is a cooling, bitter leaf used in Chinese medicine to clear lingering low-grade fevers and support the body's fluids. It is especially valued for chronic coughs with blood-streaked phlegm, afternoon fevers, dizziness, and sore lower back and knees associated with long-term depletion. It also has traditional uses for red eyes, dysentery, and skin sores.
Herb Category*
Main Actions*
- Clears Deficiency Heat
- Nourishes Yin
- Resolves Phlegm and Stops Cough
- Dries Dampness
- Resolves Toxicity
- Cools the Blood
How These Actions Work*
'Clears Deficiency Heat' means this herb addresses the low-grade, lingering Heat that arises when the body's cooling, moistening Yin fluids become depleted. This type of Heat is not caused by an external infection but by an internal imbalance. Symptoms include afternoon fevers, night sweats, a flushed face, and a sensation of heat in the palms and soles. Gong Lao Ye's cool, bitter nature directly drains this kind of smoldering Heat, making it especially useful for people with chronic conditions like tuberculosis where Yin has been consumed over time.
'Nourishes Yin' refers to the herb's ability to support and replenish the body's vital fluids and cooling resources. Classical commentators compared its action to that of Nu Zhen Zi (privet fruit), describing it as a cooling tonic that strengthens the body while clearing Heat. The Ben Cao Jing Shu noted that this herb "enters the Kidney channel and nourishes Yin, so Phlegm-Fire naturally resolves, like removing fuel from beneath a pot." This makes it different from purely draining Heat-clearing herbs, as it also supports the root deficiency.
'Stops coughing and transforms Phlegm' applies specifically to coughs arising from Lung Yin Deficiency with Deficiency Fire, where heat scorches the Lung fluids and produces thick, scanty, or blood-streaked phlegm. The herb cools the Lungs while addressing the underlying Yin depletion that generates the cough.
'Dries Dampness and resolves toxins' reflects the bitter taste's natural ability to dry pathological Dampness and the herb's demonstrated antimicrobial properties. This action is relevant for conditions like dysentery, Damp-Heat jaundice, vaginal discharge, and eye infections where Damp-Heat and toxins accumulate.
Patterns Addressed*
In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Gong Lao Ye is traditionally associated with these specific patterns.
The following describes this herb's classification within Traditional Chinese Medicine theory and is provided for educational purposes only.
Why Gong Lao Ye addresses this pattern
When Lung and Kidney Yin are depleted, Deficiency Fire flares upward, scorching the Lungs and producing chronic cough, blood-streaked phlegm, and afternoon fevers. Gong Lao Ye's cool, bitter nature clears this Deficiency Heat from the Lung channel while simultaneously nourishing the depleted Yin of the Kidneys. Classical sources specifically note that this herb 'enters the Kidney channel to nourish Yin, so Phlegm-Fire naturally resolves.' This dual action of clearing Heat above while supporting the root deficiency below makes it particularly well-suited for this pattern, where purely draining herbs would further damage Yin.
A practitioner would look for one or more of these signs
Chronic dry cough, sometimes with blood-streaked sputum
Night sweats from Yin Deficiency
Tinnitus and dizziness from Kidney Yin depletion
Sore and weak lower back and knees
Afternoon tidal fever (bone-steaming heat)
Why Gong Lao Ye addresses this pattern
When Damp-Heat lodges in the Large Intestine, it produces dysentery with abdominal pain, urgent diarrhea, and mucus or blood in the stool. Gong Lao Ye's bitter flavor dries Dampness while its cool nature clears Heat, and its toxin-resolving action addresses the infectious component. The herb contains berberine and related alkaloids that have demonstrated antibacterial activity against dysentery-causing organisms, providing a pharmacological basis for its traditional use in this pattern.
A practitioner would look for one or more of these signs
Dysentery with mucus or blood
Urgent, foul-smelling diarrhea
Abdominal cramping with tenesmus
Why Gong Lao Ye addresses this pattern
When Liver Fire flares upward, it can manifest as red, painful, swollen eyes, headaches, and irritability. Gong Lao Ye enters the Liver channel and uses its cool, bitter properties to drain Liver Fire and clear Heat from the eyes. Regional traditions in Tibet and Guangxi specifically highlight its use for red, swollen, painful eyes and for fever with restlessness, both hallmarks of Liver Fire rising to the head and eyes.
A practitioner would look for one or more of these signs
Red, swollen, painful eyes
Headache from Liver Fire
Irritability and restlessness
TCM Properties*
Cool
Bitter (苦 kǔ)
Leaf (叶 yè)
This is partial information on the herb's TCM properties. More detailed information is available on the herb's dedicated page
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.