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Temporary nerve blocks Nerve blocks, usually with an injection through a tube or needle, can be temporary or long lasting (sometimes called permanent). A temporary block uses a local anesthetic (numbing medicine) which lasts hours to days. In some situations, a corticosteroid may be added to treat inflammation in the area. The medication can be put in one time by needle, or repeatedly if a tube is left in place. Temporary blocks can be used to test whether a longer lasting block is likely to be helpful. They can also relieve pain from muscle spasms or temporary inflammations. A common example of a temporary nerve block is a shot of novocaine at the dentist's office. |
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