I was diagnosed with bulging disc a year back with pain in the back underneath my thighs and my buttocks and also underneath the knee joint. I took a injection in the spine a month back and now the back pain is gone but still I have a lot pain when I sit (in my left buttock) and also underneath my knee joint of the left leg. What should I do as am suffering for a very long time. My left leg also feels a bit stiff than the right one.

Dr. Manish RajPain Management Specialist12yrs exp

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Hi lybrate user, I believe you had been given either transforaminal epidural (nerve block) or caudal epidural for disc herniation. Nerve block reduces the inflammation caused by inflammatory chemicals from disc material but it doesn't reduce the disc size or repair it. So we can say i'm acute case nerve block is very helpful but it may not reduce the herniation part. You mentioned pain while sitting on left buttock, it could be due to sacroilitis (sacroiliac joints inflammation, when someone having low back ache it's rare that only one component of spine is responsible for pain, there could be facetal arthritis, sacroilitis, piriformis syndrome, quadratus lumborum syndrome, para spinal muscle spasm gets associated with primary disc herniation pathology or vice versa. So there are multiple components of pain in 1 patient. When you report severe most pain, we try to resolve that pain first, but it doesn't mean all pain can be treated by one injection or tablet. For this constant watch is required. In your case your Dr. Might have given injection for discogenic pain which was primary at that point, now you might have main pain from sacroiliac joints and there might be some other component as well, have a close consultation with one specialist till he gives up on diagnosis or treatment or you are not happy with relief you get. 

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