Epidural Steroid Injection

An epidural steroid injection is given to relieve pain in your neck, back, or legs that is caused by the irritation or swelling of a nerve root. This procedure involves injecting a steroid and numbing medicine (anesthetic) into the epidural space. The epidural space is the space between the outer covering of your spinal cord and the bones that form your backbone (vertebra).


  • Any allergies you have.

  • All medicines you are taking, including vitamins, herbs, eye drops, creams, and over-the-counter medicines such as aspirin.

  • Previous problems you or members of your family have had with the use of anesthetics.

  • Any blood disorders or blood clotting disorders you have.

  • Previous surgeries you have had.

  • Medical conditions you have.


Generally, this is a safe procedure. However, as with any procedure, complications can occur. Possible complications of epidural steroid injection include:

  • Headache.

  • Bleeding.

  • Infection.

  • Allergic reaction to the medicines.

  • Damage to your nerves.

The response to this procedure depends on the underlying cause of the pain and its duration. People who have long-term (chronic) pain are less likely to benefit from epidural steroids than are those people whose pain comes on strong and suddenly.


  • Ask your health care provider about changing or stopping your regular medicines. You may be advised to stop taking blood-thinning medicines a few days before the procedure.

  • You may be given medicines to reduce anxiety.

  • Arrange for someone to take you home after the procedure.


  • You will remain awake during the procedure. You may receive medicine to make you relaxed.

  • You will be asked to lie on your stomach.

  • The injection site will be cleaned.

  • The injection site will be numbed with a medicine (local anesthetic).

  • A needle will be injected through your skin into the epidural space.

  • Your health care provider will use an X-ray machine to ensure that the steroid is delivered closest to the affected nerve. You may have minimal discomfort at this time.

  • Once the needle is in the right position, the local anesthetic and the steroid will be injected into the epidural space.

  • The needle will then be removed and a bandage will be applied to the injection site.


  • You may be monitored for a short time before you go home.

  • You may feel weakness or numbness in your arm or leg, which disappears within hours.

  • You may be allowed to eat, drink, and take your regular medicine.

  • You may have soreness at the site of the injection.