Dictamnus Root Bark Chinese Herb

Dictamnus Root Bark (Bai Xian Pi): A Cooling Herb for Damp-Heat, Skin Irritations, and Toxin Relief
Introduction
Dictamnus root bark, known as Bai Xian Pi (白鲜皮) in Traditional Chinese Medicine (TCM), is a cooling, bitter herb used to clear damp-heat, resolve toxicity, and relieve itching. It is especially valued in conditions involving eczema, sores, vaginal discharge, and jaundice. With its strong heat-clearing and detoxifying properties, it is often included in formulas for skin and damp-related disorders.
What Is Dictamnus Root Bark?
Bai Xian Pi is the dried root bark of Dictamnus dasycarpus, a flowering shrub native to China. In TCM, it is classified as bitter and cold, and it enters the Spleen, Stomach, and Liver meridians. It is prized for its ability to target damp-heat in the skin and lower body while reducing inflammation and itching.
Health Benefits of Dictamnus Root Bark
Clears damp-heat and relieves itching
Used for weeping eczema, rashes, and fungal infections with red, itchy, or oozing skin.
Expels wind-damp and relieves pain
Alleviates joint pain, swelling, or stiffness caused by damp-heat in the channels.
Drains heat and resolves fire toxins
Treats sores, boils, and yellowish vaginal discharge due to internal heat and damp accumulation.
How to Use Dictamnus Root Bark
In decoctions for skin disorders
Boiled and consumed internally to treat eczema, dermatitis, or jaundice.
In washes or soaks for topical use
Used as an herbal rinse for fungal skin infections, itchy lesions, or vaginal discomfort.
With heat-clearing and detoxifying herbs
Combined with Ku Shen, Huang Bai, or Tu Fu Ling for stronger toxin elimination and anti-itch effects.
Where to Buy Dictamnus Root Bark
- Available at Chinese herbal apothecaries
- And through online vendors like Mayway, ActiveHerb, or Kamwo.
Look for:
- Clean, pale brown root bark slices
- Lightly bitter, herbal scent
- Dried and sealed in airtight packaging to retain potency
Are There Any Side Effects?
Dictamnus root bark is cooling and drying, so it should be avoided in cases of cold-damp conditions or weak digestion. Prolonged use may deplete fluids or cause gastrointestinal discomfort. Always consult a licensed TCM practitioner for proper dosage and formulation.
Conclusion
Dictamnus root bark (Bai Xian Pi) is a valuable herb for clearing damp-heat, treating skin inflammation, and resolving toxins. Best used in balanced formulas for eczema, sores, or damp-related pain, it offers targeted relief for both internal and external heat conditions.
FAQ
Can Dictamnus Root Bark be applied directly to the skin?
Yes, when decocted into a rinse or soak, but it should not be used on open wounds without guidance.
Is it safe for long-term use?
It’s best used short-term or under supervision, as excessive use can be too cooling and drying for the body.
Can it help with fungal infections?
Yes, it is commonly used to treat ringworm, athlete’s foot, and other damp-heat skin conditions.