Copper rust 15 gm, Alum 12 gm, Chalcanthite 9 gm, Gallnut (lightly stir-fried) 30 gm, Bletilla striata 15 gm, Calomel, Curcuma, each 6 gm, Musk 0.9 gm

bubble_chart Preparation and Dosage

Grind the above ingredients into a fine powder, then simmer with 250 ml of aged vinegar over low heat until reduced to 50 ml, until golden bubbles form.

bubble_chart Indications

Back gangrene is about to ulcerate or has already ulcerated, with the base spreading and unable to be contained.