Medication Injected Once the needle is positioned properly, the physician injects a soothing mixture of numbing anesthetic and anti-inflammatory steroid medication. One or more facet joints may be treated. If this causes the pain to subside, it suggests that the facet joint (or joints) injected were the cause of pain.
End of Procedure Back or neck pain may disappear immediately after a successful injection because of the anesthetic that is administered. As this anesthetic wears off, pain may return. The steroid will begin to take effect in the days after the injection. The steroid will reduce inflammation and pain. The injection can provide relief for a span ranging from several days to several months. Up to three injections may be given per year.