Overall, this procedure has very few risks. However, as with any procedure, there are some risks and side effects you should know about. Commonly encountered side effects are increased pain from the injection (usually temporary), rarely inadvertent puncture of the “sack” containing spinal fluid (may cause headaches), infection, bleeding, nerve damage, or no relief from your usual pain. Side effects of the injected steroid are generally temporary and may include feeling sweaty and red faced for a few days, temporary weight gain, a short term increase in blood sugar (mainly in diabetics) if you take medication for diabetes your doctor may need to advise you about medication adjustment, you can discuss the steroid medication more completely when you come in for the procedure. Some people experience flushing, sweatiness and/or palpitations for few days afterwards.