Halite Classic Formulas … Natural Herb Library

Primary Actions

Clears heat and cools the blood - medicinal halite is traditionally used for bleeding patterns such as hematuria, hematemesis, or bleeding from the mouth and gums when heat is a key feature.
Brightens the eyes - classical use includes red, swollen, painful, or blurry eyes, often in washes or other local applications.
Moistens dryness and softens hardness - it is given in small measured doses when internal dryness and heat bind the bowels and contribute to constipation.
Used externally for mouth, throat, and dental complaints - salt-water rinses, powders, and eye washes are a long-standing part of the halite tradition.

Fu Ling Rong Yan Tang - the classic Jin Gui Yao Lue pairing for urinary difficulty involving halite's downward and opening action.
Topical eye and dental applications with Qing Yan - traditional external-use pattern for red eyes, gum bleeding, and tooth pain.
Classical salt-and-alum style powders - external or local-use combinations for throat, mouth, or hemorrhoidal complaints.

The National Administration of Traditional Chinese Medicine-linked Chinese medical reference platform describes medicinal halite under Rong Yan, listing aliases including Qing Yan and Yan Yan, with actions of purging heat, cooling blood, brightening the eyes, and moistening dryness.
Traditional sources repeatedly distinguish medicinal rock salt from ordinary culinary use by emphasizing measured dosing, external applications, and heat-pattern indications.