For the lumbar spine closed needle how much a needle, the lumbar spine closed needle is mainly the application of dexamethasone, lidocaine, vitamin B1, vitamin B12 for closed injection, these drugs are relatively cheap, about one or two dozen dollars or so. But there is one thing to note, the lumbar spine to play closed injection, it is best to the regular hospital, because if the operation in the outside of the small clinics, there is a risk of injury to the spinal nerve, may appear leg pain, leg numbness, leg weakness, and even cause abnormal urination and defecation, the danger is very high, so it is best to the regular hospital operation. Lumbar spine to play closed injection is mainly for the pain point is relatively clear, such people can actively closed injection, the effect is very good.