Red Lead Classic Formulas … Natural Herb Library

Primary Actions

Draws out toxin and dries damp lesions ... historical Qian Dan use centered on external sores, eczema, scabies, and chronic wet lesions that needed a harsh drying mineral.
Promotes tissue closure in ulcerated or slow-healing skin conditions ... older topical practice used the powder in plasters and ointments for abscesses, burns, and damaged tissue.
Historically reduced phlegm and settled fright in minute internal use ... this indication is preserved as a historical note only, not as a modern therapeutic endorsement.

External ulcer and parasite powders ... classical use paired Qian Dan with borneol, alum, or other drying minerals for sores, scabies, and damp-toxic lesions.
Historical plasters for burns or non-healing wounds ... Qian Dan appears in older tissue-closing preparations now viewed through a strict toxicology lens.
Rare internal pill traditions for phlegm or fright are recorded in older literature but are not carried forward here as practical modern recommendations.

Traditional materia medica describe Qian Dan as an acrid toxic mineral that removes toxin, dries dampness, kills parasites, and promotes flesh growth.
The same historical sources that preserve these actions also make modern reinterpretation necessary, because lead toxicology now outweighs any casual expansion of use.