What Happens After the Injection?
Some patients report immediate relief after the injection while others experience noticeable results with a few weeks once the steroids have had a chance to work. Some warmth may be felt in the affected area or legs as pain subsides and the medication takes effect. Strenuous activity should be avoided for about 24 hours before returning to a normal routine.
How Safe is It?
Nerve blocks are generally considered safe for most patients. It’s not recommended for anyone with an active infection or conditions like diabetes that aren’t properly managed. Some temporary soreness may be experienced at the injection site, but this is normal and usually goes away shortly after the shot is given.
Results from a lumbar sympathetic block will depend on whether or not there are additional factors contributing to lower back or radiating nerve pain, such as a herniated disc or pressure on the sciatic nerve or sacroiliac (SI) joint. Injections may also be used to identify other possible pain sources. Some patients will benefit from a handful of injections while others report better results with more shots. Effects from the block usually last longer after each injection.