☯ TCM Properties
Draws out pus, removes putrid tissues and promotes the growth of new tissues
Traditional Chinese Uses
Hong Fen (also Hong Sheng Dan) is a refined mercury-based mineral preparation, historically produced by subliming mercury with alum and niter, and consisting chiefly of mercuric oxide (HgO) with related mercury salts. It belongs to the substances for external application only. Applied topically in trace amounts as a powder or medicated ointment, it drains pus, removes putrid and necrotic tissue and promotes the generation of new flesh, and was used for chronic non-healing ulcers, deep abscesses, fistulas, sinus tracts and toxic sores, classically in preparations such as Sheng Ji Yu Hong Gao.
This is a highly toxic mercurial. It must never be taken internally, must not be applied to large or open surfaces or over prolonged periods, and can cause mercury poisoning through absorption. It is legally restricted or prohibited in many jurisdictions and is presented here for historical and reference purposes only; it should not be sourced or self-applied.
Botanical Description
Hong Fen, also called Hong Sheng Dan, is a refined mineral substance composed primarily of mercurous chloride (Hg2Cl2, calomel) and mercuric oxide (HgO), produced historically by sublimation from mercury, alum, and nitre. The product appears as bright red to orange crystalline scales or powder. In classical TCM it was used externally only, applied to chronic ulcers, abscesses, syphilitic chancres, and non-healing sores to remove necrotic tissue and promote granulation. Owing to its severe mercury toxicity and risk of systemic poisoning through skin and mucosal absorption, modern clinical practice strictly discourages internal use and limits external application to very small quantities in carefully formulated topical preparations. It is regulated as a toxic substance in the Chinese Pharmacopoeia.
Dosage
| Form | Amount | Frequency | Duration | Population | Notes |
|---|---|---|---|---|---|
| poultice | As needed | Daily | — | — | — |
This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.
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