Moxabustion is a warming technique using small amounts of finely ground mugwort plant.  Moxa is stimulating to the immune system, strengthens the yang energy of the body, and helps move blood and qi and heals chronic aches and pains.  It can be applied in a variety of ways.  Two particular instances that it is especially helpful for are to help stop uterine bleeding and to help turn breech babies.  However, it is commonly used for a wide variety of other conditions such as indigestion, insomnia, and pain.