What it is
An epidural steroid injection (ESI) delivers a small dose of corticosteroid — sometimes combined with a numbing medication — into the epidural space around the irritated nerve in your spine. The steroid calms inflammation; the relief gives your body a window to heal and lets you actually do the physical therapy that locks in long-term improvement.
It is not a cure for the underlying disc or nerve problem. It is a powerful tool for pain control that, used in the right patient, can turn a downward spiral into recovery.
Who it helps
You may be a candidate if you have:
- Sciatica — pain that shoots down the back of one leg
- A diagnosed herniated or bulging disc with nerve irritation
- Spinal stenosis with leg pain or weakness when walking
- Radicular pain that hasn't responded to rest, anti-inflammatories, or PT alone
- Pain severe enough to interfere with sleep, work, or daily activities
What the procedure looks like
Pre-Procedure Visit
We confirm the diagnosis, review your imaging, talk through what to expect, and answer questions. You'll get clear instructions on medications to pause beforehand.
Day of the Procedure
You'll be positioned face-down on a procedure table. The skin is cleaned and a small amount of local anesthetic is used to numb the area.
Image-Guided Injection
Using live X-ray (fluoroscopy) and a small amount of contrast dye, we place the medication precisely where it needs to go. The injection itself takes only a few minutes.
Brief Recovery
You'll rest for about 15 to 30 minutes while we make sure you feel well. Most patients go home within an hour of arriving.
Follow-Up
We'll check in within 1 to 2 weeks to see how you're responding. The full effect of the steroid usually develops over 5 to 7 days.
How long does relief last? Highly variable — anywhere from a few weeks to many months. Some patients get one injection and never need another. Others do a short series of two or three. We tailor the plan to how your body responds.
Risks and what to watch for
ESIs are considered safe when performed by experienced physicians under image guidance. The most common side effects are mild and short-lived: temporary soreness at the injection site, a brief flush, or a few days of slightly elevated blood sugar in patients with diabetes.
Serious complications are rare. Call us right away if you develop fever, severe headache, new weakness, or loss of bladder/bowel control after a procedure.
What to expect afterward
- Take it easy the rest of procedure day — no heavy lifting or strenuous activity
- You can usually return to normal activities the next day
- Plan to start or resume physical therapy when your pain has eased
- Track your pain in a simple log — it helps us judge how well the injection worked
Frequently asked questions
Will the injection hurt?
You'll feel a small pinch from the local anesthetic, then mostly pressure. Most patients are surprised at how quick and tolerable the procedure is.
Can I drive home afterward?
If you've had any sedation, no — bring a driver. If you've had only local anesthetic, most patients can drive themselves, but we'll confirm at your visit.
Is it covered by insurance?
Yes, in most cases — including Medicare. We verify your specific coverage before the procedure so there are no billing surprises.
What if it doesn't work?
It happens, and it's useful diagnostic information. If you don't get the relief we expected, that points us toward other targeted options — facet injections, RFA, or sometimes a referral for further evaluation.