I myself had this shot kenalog and marvin about 8months ago, got it for chronic back pain, i suffered from herniated disc, degenarate spine, it's no fun getting old. i'm 34 yrs old mother of 16 & 6. i was diagnosed may 2007, from, insomnia, migraine, stiffness of back, sciatica symptoms, depression.
i thought the shots was the answer. it really didn't do nothing for me, but i remember the shot was painful, and they bruised a little, but there was one on my tailbone that bruised last night months, didn't think of anything bad, until i started to notice the white, dented looks like tunnel going in, it sore around it, and it's getting bigger and bigger. Yeah so many things going through my head, is this cancer, some kind bone desease. I see my Dr. next week, and i will ask him for MRI and what can he do to fix this problem...if anyone has any info or in LA< CA.pls forward to me. its good to know i'm no alone and going crazy... thanks