I just read your reply to Annette2,and was wondering about your Costo. shots. What did he/she give you,and how awfull was it?My pain managment Dr. mentioned it the last time I saw him.and I see him again the 5th.I guess the shots couldn't be much worse than hurting so bad I was in bed for 5 days.Plus it never goes away.just becomes livable. Do you think it was worth it,and would youj do it again??!! Thanks for your input& mmay you stay pain free.