Gem stones as per crystal therapy will work surely work on relieving the pain. Astrology may not directly help you in this matter. Kindly place this question in the newbie and gemstones sections, our expert gemologist Himanshu shall definitely help you in this.
You also need a lot of exercises for this problem, stretching and all, kindly visit a physiotherapist too, cause the structure of your spine especially the joints near the end have popped. Use this as a primary remedy and gems as a secondary supportive remedy, lastly you may then go for an astrological gem.
Wishing you good luck, may God bless you and above all??????