Healing Library
Baical Skullcap (Huang Qin) — The Heat-Clearing Herb with the Deepest Research
Huang Qin (Scutellaria) is a core TCM herb for clearing lung heat and drying intestinal dampness. Explore its classical uses in Xiao Chai Hu Tang, modern research on its anti-inflammatory and antiviral effects, and important safety guidelines.
A Bitter Herb for Hot Conditions
Huang Qin Scutellaria baicalensis is one of the most important heat-clearing and dampness-drying herbs in TCM. Its root has been used for over two thousand years to treat conditions characterized by heat and dampness, from febrile diseases to inflammatory bowel disorders. In modern pharmacology, it has become one of the most researched Chinese herbs, with particular attention to its anti-inflammatory, antiviral, and hepatoprotective properties.
What Is Scutellaria baicalensis?
A perennial herb in the mint family Lamiaceae native to East Asia. The root is harvested in spring or autumn, dried, and sliced for use.
- Nature: Cold 寒
- Flavor: Bitter 苦
- Meridians: Lung, Gallbladder, Spleen, Large Intestine, Small Intestine
The bitter flavor drains and dries; the cold nature clears heat. Huang Qin specifically targets upper burner heat particularly Lung heat and Gallbladder heat.
Actions and Indications
1. Clear Heat and Dry Dampness 清热燥湿
Huang Qin is the go-to herb for damp-heat conditions in the middle and lower burners: dysenteric disorders, jaundice, urinary tract infections with burning sensation.
2. Purge Fire and Detoxify 泻火解毒
Used for febrile diseases with high fever, irritability, thirst. Also for skin infections, boils, and carbuncles.
3. Cool Blood and Stop Bleeding 凉血止血
For bleeding due to blood heat, including nosebleeds, vomiting blood, and blood in the stool or urine.
4. Calm Fetus 安胎
Huang Qin is one of the key herbs for threatened miscarriage due to heat in the blood.
Classical Foundation
Shennong Bencao Jing: "Huang Qin governs all types of heat, jaundice, dysentery, and painful urinary conditions."
Modern Research
| Compound | Key Effects |
|---|---|
| Baicalin 黄芩苷 | Anti-inflammatory, antiviral including SARS-CoV-2, hepatoprotective |
| Baicalein 黄芩素 | Antioxidant, neuroprotective |
| Wogonin 汉黄芩素 | Anti-tumor, anxiolytic |
Huang Qin is one of the most researched TCM herbs in Western pharmacology with thousands of peer-reviewed papers.
Dosage
| Form | Dose | Notes |
|---|---|---|
| Decoction | 3-10g | Standard use |
| Charred 黄芩炭 | 6-12g | For bleeding |
Key Combinations
| Pair | Formula | Effect |
|---|---|---|
| Huang Qin + Chai Hu | Xiao Chai Hu Tang | Clears shaoyang heat |
| Huang Qin + Huang Lian | Huang Qin Tang | Dries damp-heat in intestines |
| Huang Qin + Bai Zhu | — | Calms fetus in heat patterns |
| Huang Qin + Zhi Zi | — | Clears heat and relieves vexation |
Precautions
- Spleen deficiency with diarrhea: Bitter-cold nature may worsen loose stools
- Pregnancy: Generally safe in moderate doses for specific indications
