What is the meaning of the Hadith: "The medicine for sciatica is the fat tail of a Bedouin sheep, which is melted down, then divided into three parts, then drunk on an empty stomach, one part each day"?

The cure for sciatica—a pain that starts from the hip joint and extends down to the heel—is the fat from the rump of a wild desert sheep. This fat is melted, divided into three parts, and one part is drunk each day. This treatment is considered among the most beneficial because it ripens and softens.