If you have pain in your arches, I would suggest stretching them before and after dancing. You can do this by pulling back your toes. Remember, don't bounce when you stretch, just a steady stretch. You can also massage your arches with your fingers or uses golf balls. Icing for 10 to 15 minutes also helps. For an ice massage, put dixie cups in the freezer and tear off the paper as the ice melts (5-10 minutes).