Arnica has been used widely since the 1500's to heal sore muscles, bruises and cuts. As with most true medicine, it is toxic in large amounts but when used topically, can improve conditions drastically within a matter of hours or days. The flower is also used after wisdom teeth removal and for insect bites.
Riverdance is now providing massage bars with Arnica oil in them, see our store for ordering as well as info about our coconut and cucumber-mint massage bars.
For more information about Arnica specifically, see this empirically based article by: WebMD.