Calamina (4 qian) Borneol (1 fen) Pig's foot bone marrow (1 pair)
First, grind the Calamina and Borneol separately into fine powders. Mix them evenly. Then, mash the pig's foot bone marrow until soft. Incorporate the aforementioned two powders into the mashed marrow. Stir uniformly. Store in a porcelain bowl.