☯ TCM Properties
Clears Heat, cools the Blood, improves eyesight and moistens Dryness
Traditional Chinese Uses
Da Qing Yan is halite, the natural crystalline form of rock salt (sodium chloride; Halitum), a salty, cold mineral entering the Heart, Kidney, and Bladder channels. It clears Heat and cools the Blood, brightens the eyes, and moistens Dryness. Internally, in small dose, it is used for Blood-Heat bleeding such as blood in the vomit or urine and bleeding, sore gums, for toothache, and for constipation with dry stool.
A prominent traditional use is topical: pounded to powder it is applied to red, swollen, painful eyes and eyelid-margin inflammation (as an eyewash), and used for the teeth and gums as a dentifrice or mouthwash. Typical internal dose is small (about 1.2-2.5 g), or it is made into pills or powder. As a concentrated salt it should be used sparingly and cautiously, especially where sodium restriction applies.
Botanical Description
Da Qing Yan (大青盐) is the Chinese materia medica name for halite, a naturally occurring crystalline form of sodium chloride (NaCl), commonly known as rock salt. It is not a plant but a mineral substance, typically harvested from salt deposits or salt lakes in northern and northwestern China. The crystals are colorless, white, blue, or pale violet, and dissolve readily in water. In traditional Chinese medicine, Da Qing Yan is classified as cold and salty, entering the Kidney, Heart, and Stomach channels. It is used to cool blood, clear heat, brighten the eyes, soften hard masses, and detoxify. Classical indications include sore swollen gums, toothache, throat soreness, and red eyes, and it appears as an ingredient in ophthalmic and dental preparations.
Dosage
| Form | Amount | Frequency | Duration | Population | Notes |
|---|---|---|---|---|---|
| decoction | 6-15g | 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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