Yu Dai Wan (愈带丸) — Cure Discharge Pill
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1. Overview
Yu Dai Wan — "Cure Discharge Pill" — is a classical Chinese formula for Damp-Heat leukorrhoea (vaginal discharge). It clears Damp-Heat from the lower burner, cools Blood, and resolves the toxin underlying chronic yellow, red or foul-smelling vaginal discharge. It is one of the principal gynaecological formulas for chronic cervicitis, persistent vaginal discharge after bacterial vaginosis, and Damp-Heat patterns of vulvovaginitis.
2. Composition
| Herb | Role |
|---|---|
| Chun Pi (Ailanthus root bark) | Chief — clears Damp-Heat, astringes discharge |
| Bai Shao | Deputy — nourishes Blood, softens Liver |
| Dang Gui | Deputy — nourishes and invigorates Blood |
| Huang Bai | Assistant — clears Damp-Heat in the lower burner |
| Gao Liang Jiang | Assistant — warms middle, prevents the Cold herbs harming the Stomach |
3. Indications
- Chronic yellow vaginal discharge with Damp-Heat
- Red-tinged or blood-streaked discharge (where investigation has excluded malignancy)
- Foul-smelling discharge with itching
- Chronic cervicitis with persistent discharge
- Bacterial vaginosis with chronic Damp-Heat presentation
- Damp-Heat trichomoniasis (alongside conventional treatment)
4. How it works
The chief herb Chun Pi has a unique action of astringing the Dai mai (Belt vessel) while clearing Damp-Heat — the precise mechanism needed for Damp-Heat leukorrhoea. Huang Bai reinforces the Damp-Heat-clearing action in the lower burner. Bai Shao and Dang Gui nourish Blood — chronic discharge depletes Blood and Yin. Gao Liang Jiang protects the middle from the cold-bitter herbs.
5. Modern applications
Modern Chinese gynaecology clinics use Yu Dai Wan for chronic cervicitis, post-treatment lingering vaginal discharge, and Damp-Heat patterns where conventional swab cultures are negative but symptoms persist. Always alongside, never instead of, appropriate conventional investigation including STI screening and cervical cancer screening.
6. Cautions
Damp-Heat pattern only — do not use for cold-Damp white discharge (use Wan Dai Tang instead). Always investigate red, blood-tinged or post-menopausal vaginal bleeding with conventional medicine first. Caution in pregnancy. Must be prescribed by a qualified Chinese herbalist.
7. Treatment at my clinic
I prescribe Yu Dai Wan as granules for chronic Damp-Heat vaginal discharge that has been investigated by GP and gynaecology and where TCM pattern matches. Online Chinese herbal consultations are available. See prices for costs.
