About This Herb*
Traditional Chinese Medicine background and properties
Herb Description*
She Gan (blackberry lily rhizome) is a cooling herb best known for treating sore throat, cough, and wheezing. It works by clearing heat and inflammation from the throat and lungs while helping to break down phlegm that causes breathing difficulties. It has been used in Chinese medicine for over two thousand years, first recorded in the Shen Nong Ben Cao Jing.
Herb Category*
Main Actions*
- Clears Heat and Resolves Toxicity
- Expels Phlegm
- Benefits the Throat
- Descends Lung Qi and Stops Cough
- Disperses Accumulations and Dissipates Nodules
How These Actions Work*
'Clears Heat and resolves toxins' means She Gan has a cooling effect that helps the body deal with inflammatory, hot conditions, particularly those affecting the throat and lungs. This is the primary reason it has been considered an essential herb for sore throat since ancient times. Its bitter, cold nature directly counters Heat and toxins that cause swelling and pain in the throat.
'Eliminates Phlegm' refers to the herb's ability to break down thick, sticky mucus that obstructs the airways. She Gan is especially known for dissolving stubborn Phlegm that collects in the lungs and throat. Its bitter flavour has a naturally descending and drying quality that helps move Phlegm downward and out of the body.
'Benefits the throat' is the action She Gan is most famous for. It reduces swelling, eases pain, and restores the voice in conditions ranging from acute sore throat and tonsillitis to chronic hoarseness. Classical texts regarded it as the go-to herb whenever the throat was swollen and obstructed.
'Descends Lung Qi' means She Gan redirects the flow of Qi in the lungs downward when it has become rebellious (flowing upward), which is what causes coughing and wheezing. By lowering Lung Qi and clearing Phlegm simultaneously, it addresses the root mechanism behind many types of cough and asthma.
Patterns Addressed*
In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. She Gan 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 She Gan addresses this pattern
She Gan is bitter and cold, entering the Lung channel directly. In Phlegm-Heat patterns, Heat condenses fluids into thick, yellow Phlegm that obstructs the airways and throat. She Gan's cold nature clears the Lung Heat, while its bitter flavour descends rebellious Lung Qi and dissolves accumulated Phlegm. This dual action of clearing Heat and eliminating Phlegm makes it particularly well suited for this pattern, where both pathogenic Heat and Phlegm are present simultaneously.
A practitioner would look for one or more of these signs
Swollen, painful throat with Heat toxin
Cough with thick yellow phlegm
Wheezing with phlegm rattling in the throat
Hoarse or lost voice
Why She Gan addresses this pattern
Although She Gan is cold in nature, it is classically paired with warm, dispersing herbs like Ma Huang and Xi Xin to address Cold Phlegm lodged in the lungs. In this pattern, She Gan contributes its powerful Phlegm-dissolving and Qi-descending actions without needing to clear Heat. The formula She Gan Ma Huang Tang from the Jin Gui Yao Lue exemplifies this approach: She Gan opens up Phlegm obstruction in the throat and descends rebellious Lung Qi, while warm herbs handle the Cold aspect. The characteristic symptom pointing to She Gan's role here is the wheezing sound in the throat described as 'water-chicken sound' (a gurgling, croaking noise from Phlegm blocking the airways).
A practitioner would look for one or more of these signs
Wheezing with a gurgling 'water-chicken' sound in the throat
Copious thin, white sputum
Cough with upward-rushing Qi
Fullness and oppression in the chest
Why She Gan addresses this pattern
When intense Heat toxins accumulate in the throat, they cause severe swelling, redness, and pain that can even obstruct breathing and swallowing. She Gan's ability to clear Heat toxins and reduce swelling in the throat is its most celebrated classical action. The Shen Nong Ben Cao Jing recorded it for 'throat obstruction and throat pain' (喉痹咽痛). Its bitter, cold properties directly drain the Fire and toxins responsible for the swelling, while its descending nature helps open the obstructed throat. It can be used alone for this pattern or combined with herbs like Niu Bang Zi and Jie Geng.
A practitioner would look for one or more of these signs
Severe throat pain with swelling and redness
Difficulty swallowing due to throat obstruction
Swollen, inflamed tonsils
TCM Properties*
Cold
Bitter (苦 kǔ)
Rhizome (根茎 gēn jīng)
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.