Epidural steroid injections place corticosteroid medication in the epidural space around inflamed nerve roots. For acute radicular pain — sciatica from a herniation, for example — they can provide meaningful temporary relief, often weeks to months. They don't reverse structural problems, and the effect is typically not permanent.
What the injection does
The epidural space sits just outside the dura — the membrane around the spinal cord and nerve roots. An epidural steroid injection delivers a corticosteroid into that space at a specific level, reducing inflammation around an irritated nerve root.The mechanism is anti-inflammatory, not structural. The herniation that’s irritating the nerve doesn’t shrink because of the injection (it may shrink on its own over time, separately). What the injection changes is the local inflammatory environment, which is often what’s actually producing the pain.
When they help
Acute radicular pain from a herniated disc — classic sciatica that’s been going on for weeks but is severe enough to interfere with daily life — is the indication where epidural injections have the strongest evidence for short-term benefit. Many patients experience meaningful improvement that buys time for the underlying herniation to resolve on its own.For diffuse axial back pain without a clear nerve compression, the evidence is weaker. For older chronic pain without an inflammatory component, the effect tends to be smaller and shorter.
What they don't do
Epidural injections don’t repair discs, restore lost disc height, or change the underlying anatomy. They are not a substitute for addressing a structural problem that genuinely needs structural intervention. They are a useful bridge — particularly for acute radiculopathy — but they’re a tool, not a cure.Send your MRI for a free review
Dr. McMillan reviews each scan personally. You get a candid answer about candidacy before any travel or scheduling.
What the consultation actually looks like
The initial visit with Dr. McMillan focuses on what your imaging actually shows and what your symptoms are telling us — independent of what you’ve been told previously. The $250 consultation fee covers his time to review your MRI personally and give you a candid evaluation. Most patients leave the visit with a clear answer: either you’re a candidate for the endoscopic approach (and we discuss what that would involve in your specific case), or you’re not (and we tell you why, and what we would suggest instead). No high-pressure scheduling, no surprise add-ons.
For patients traveling from outside the Upstate, the consultation can usually be coordinated with the procedure to minimize travel. A typical out-of-town pathway is: send your MRI for the free review, have a phone or video conversation with Dr. McMillan after his review, and travel for a single combined visit-and-procedure schedule when you decide to move forward. The office handles the logistics — lodging recommendations, transportation guidance, and post-op coordination with your local primary care physician.
If you have been told you need a fusion and you are not sure, or if you have been managing this with conservative care that has stopped working, the next step is the free MRI review. There is no obligation and no cost to send your scan. Dr. McMillan reviews each one personally. The response will tell you plainly whether the endoscopic approach fits your specific anatomy, or whether your situation calls for a different plan.
Safety considerations
Epidural injections are generally safe when performed under image guidance by an experienced practitioner. Serious complications are rare. The FDA has noted specific concerns regarding particulate corticosteroid use in the cervical spine; injections are typically performed with non-particulate steroids in the cervical region. Discuss specific risks for your situation with the practitioner.Bottom line
Epidural steroid injections place corticosteroid medication in the epidural space around inflamed nerve roots. For acute radicular pain — sciatica from a herniation, for example — they can provide meaningful temporary relief, often weeks to months. They don't reverse structural problems, and the effect is typically not permanent.
If you’ve been told you need a fusion — or you’re trying to avoid one — a free MRI review is the most useful next step. Dr. McMillan reviews each scan personally and tells you candidly whether the endoscopic approach fits your specific anatomy.
For patients dealing with epidural steroid injections, the conversation comes down to specifics: what your imaging actually shows, what your symptoms are actually telling us, and which procedure (if any) genuinely matches that pattern. The candid answer is sometimes that you do not need surgery yet; the candid answer is sometimes that you do, but a smaller operation than the one you have been quoted. A second-opinion MRI review separates those cases and gives you the information you need to make the decision well.
The Synergy approach to epidural steroid injections
At Synergy Spine Center, epidural steroid injections is performed by Dr. Marion McMillan personally — the same surgeon who reviews your imaging, plans the operation, and handles your post-operative care. This single-surgeon model isn’t unusual for boutique surgical practices; it’s structural at Synergy because the spine literature shows volume-outcome relationships for individual operators. Patients pursuing this procedure most often arrive with a diagnosis of radiculopathy or lumbar radiculopathy after being told elsewhere that more invasive surgery — typically fusion — is their only path forward.
Candidacy is established before any travel commitment through the free MRI review process. Patients submit recent imaging and a brief clinical history; the review identifies whether the specific pathology shown on imaging would respond to epidural steroid injections or whether a different intervention would be more appropriate. If you’re a candidate, you’ll receive a written assessment along with transparent bundled pricing for the procedure. If you’re not a candidate, you’ll be told that directly, often with a referral to the appropriate specialty — the review is screening, not sales.
Recovery from epidural steroid injections is intentionally faster than from traditional open spine surgery or fusion. Most patients return to office work within one to two weeks; manual labor takes four to six weeks. Routine post-operative follow-up is included in the bundled price, and for out-of-town patients much of the follow-up happens remotely through phone or secure video — the 3-day plan documents typical visit cadence. Authoritative clinical background on this procedure is also available at Cleveland Clinic — Epidural Steroid Injection for patients who want to read more about the underlying evidence.
Frequently asked
How quickly will I feel relief?
Often within a few days to a couple of weeks, as the steroid reduces the inflammation. Some patients notice change sooner; some take longer. For background on the most common diagnosis treated with this procedure, see the radiculopathy page, which covers symptoms, diagnostic workup, and treatment options in detail.
How long does the relief last?
Weeks to a few months for many patients with acute radicular pain. Effects are typically shorter for chronic pain without a clear inflammatory component. To find out whether you’re a candidate for epidural steroid injections, submit your imaging through the free MRI review — Dr. McMillan reviews each scan personally and provides candid candidacy assessment within several business days.
How many can I have?
Most clinicians limit the number per year to avoid systemic steroid effects. Specifics depend on the response and the indication. For background on the most common diagnosis treated with this procedure, see the radiculopathy page, which covers symptoms, diagnostic workup, and treatment options in detail.
Do they work for stenosis?
The evidence is mixed. Some patients with neurogenic claudication experience meaningful relief; others don’t. They’re worth a try in selected cases when the alternative is escalation. To find out whether you’re a candidate for epidural steroid injections, submit your imaging through the free MRI review — Dr. McMillan reviews each scan personally and provides candid candidacy assessment within several business days.
Are there risks?
Yes, though serious complications are rare with image guidance and appropriate technique. The FDA has noted specific cautions for cervical epidural injections. Discuss specific risks at consent. Transparent bundled pricing for epidural steroid injections is published openly at /spine-surgery-cost-transparent-pricing/, so you can plan financially before scheduling and avoid surprise bills.
Should I keep doing them if they help?
Periodically, yes, in appropriately selected patients. But each injection course should have a clear purpose and outcome assessment, not be open-ended. To find out whether you’re a candidate for epidural steroid injections, submit your imaging through the free MRI review — Dr. McMillan reviews each scan personally and provides candid candidacy assessment within several business days.
How this page was prepared
This page summarizes the clinical approach taken at Synergy Spine Center for the topic above. It is based on peer-reviewed literature, professional society guidelines (NASS, AAOS), federal patient education resources (NIH, AHRQ, CMS), and Dr. McMillan’s experience as Director of Spinal Medicine and Endoscopic Spinal Surgery. Outcome language is qualified. Individual results vary. Pricing where shown is current for 2026 and may change.
References
- FDA — risks of epidural steroid injections. — source
- OrthoInfo — back pain injections. — source
- NASS — epidural injection resources. — source
- Cleveland Clinic — Epidural Steroid Injection — clinical reference relevant to epidural steroid injections.
- AAOS OrthoInfo — Spinal Injections — clinical reference relevant to epidural steroid injections.
Synergy Spine Center publishes patient education content for general information only; it is not medical advice and does not establish a physician-patient relationship. For specific medical guidance, schedule a consultation. No identifiable patient information is included on this page.