I had a coccyx injection of kenalog 2 months ago a week after the injection I developed this horrendous burning in my thigh, I was in pain in the coccyx area for 4 years through a bad fall, and trusted the pain clinic doctor to do his job properly, but something has gone sadly wrong, could he have caught the nerve or puntered the nerve sheath for me to be in so much pain its unbearable I am on all sorts of meds including morphine and amotyptaline dihydrocodeine, pregabelin etc I didn t have this pain before so what has gone wrong please help.S