Why do some asians believe in musk bone-building analgesic plaster?

Not used here. Musk ambrette, the ingredient, is a neurotoxin, and not used in fragrances in the us any longer. Here's more info on that: http://www.Ncbi.Nlm.Nih.Gov/pubmed/6474483 many people "believe" in non-medical therapies, despite evidence of inefficacy. This product isn't available in the us. Online sources may have unknown added substances, and are probably illegal in the us.