Is it scary to play “closed”?

       Cold set of old Zhang suffering from lumbar disc herniation for several years, lower limb numbness and pain symptoms from time to time, according to massage, eating Chinese medicine can gradually ease, these years are not much impact. Recently a little repeated, massage, medicine is not useful, the county hospital doctor suggested that he can play paravertebral nerve block, old Zhang heard that the closure has a lot of side effects, and heard that after the closure and then do other treatment effect is not good, is this true? Is it true? Everyone is talking about “closure”, is there a misunderstanding of the old Zhang’s understanding? If closure and nerve block are not the same thing, then what are the similarities and differences between them? 
      The usual people say “closed” and nerve block is different, “closed” is where the pain hit, pinch the location of the patient said the pain is very strong, nerve block is based on the scope of treatment of nerve innervation, high technical requirements, the doctor must be skilled in nerve Anatomy, often numbness and pain in the legs and needles hit in the waist or hip, numbness and pain in the arm may hit in the shoulder or cervical spine. The difference between the two drug ingredients is not much, but the dosage is very different, “closed” is the old method in the past, the hormone dosage, prednisolone acetate 125mg/branch, some doctors use one at a time, the hospital is now using a smaller molecular weight, less side effects of tretinoin, good conditions can be used on betamethasone, the latest dosage of only 10mg. Yang Cheng, Department of Traditional Chinese Medicine and Orthopedics, Gucheng County People’s Hospital
      If it is a problem of intervertebral disc, some patients can have their pain relieved by nerve block technique.