Rattlesnake rattles played a symbolic role in the Dog Lodge (Kroeber, The Arapaho, pp. 203-5) and the Women’s Lodge (The Arapaho, pp. 219-20).
One treatment for snakebite reported by Alfred Kroeber was to chop off a snake’s head, dry and powder it, mix it with the dried blood of the snake, and add pepper and a medicinal root. This was sprinkled on a cloth, which was used to abraid the bite area until it bled. Then the cloth was tied around the area, a piece of lard was put on top, and a hot stone was used to keep the area warm (The Arapaho, p. 437).