☯ TCM Properties
Disperses Accumulation and stagnant Blood; Resolves Phlegm, promotes diuresis, softens hardness and removes film
Traditional Chinese Uses
Nao Sha is sal ammoniac, the mineral ammonium chloride (NH4Cl). Salty, bitter and pungent and warm (and toxic), entering the Liver, Spleen and Stomach channels, it disperses accumulations and Blood stasis, resolves Phlegm, softens hardness and removes decayed tissue and films. Traditionally it is used mainly externally: applied to abdominal masses and glandular swellings, to non-healing or necrotic sores and warts to slough dead tissue, and to eye conditions such as corneal opacity (nebula) and pterygium, as well as nasal polyps.
Given its toxicity and corrosive, irritant nature, it is used almost exclusively as an external application, crushed and prepared into pastes, powders or plasters; internal use is minimal, tightly dosed and avoided in pregnancy and in weak patients. It should not be applied to broad areas of broken skin.
Botanical Description
Nao Sha, sal ammoniac, is a naturally occurring or refined mineral substance composed of ammonium chloride (NH4Cl). It crystallises in the isometric system as colourless to white, sometimes yellow- or grey-tinted cubes or fibrous aggregates, often found near volcanic fumaroles and burning coal seams. The drug has a sharp, salty, biting taste and is highly soluble in water. In classical TCM it is described as salty, bitter, acrid, and warm with toxicity, and was used to soften hardness, disperse accumulations, transform phlegm, eliminate damp, and expel parasites; topical applications include corrosive treatment of warts, fixed masses, and chronic ulcerations. Owing to potential mucosal irritation, gastrointestinal toxicity, and risk in patients with renal or hepatic impairment, modern Chinese practice discourages internal use and reserves it for carefully controlled external preparations.
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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