How Long Does an Epidural Steroid Injection Last?

If you’re dealing with back or leg pain and considering an epidural steroid injection, one of the first questions you probably have is: how long does an epidural steroid injection last? The short answer is that most patients experience relief lasting anywhere from a few weeks to a few months, though results vary depending on the underlying condition and individual response.

Below, we break down what to expect from the procedure, what factors influence how long relief lasts, and what comes next if your pain returns.

TLDR

• Epidural steroid injections typically provide pain relief lasting a few weeks to about three months, though individual results vary based on condition and severity.
• ESIs are not a permanent solution. They are designed to reduce inflammation and provide a window of relief, allowing you to engage in physical therapy and other treatments.
• Risks are generally low but can include headache from dural puncture, temporary changes in blood pressure, and rare complications like nerve injury.
• If an ESI alone isn’t enough, Spine Team Pain Center offers a full range of options from medication management and radiofrequency ablation to minimally invasive spine surgery, all under one roof.

Ready to Find Relief?

If chronic pain is affecting your quality of life, you don’t have to keep waiting for answers. Spine Team Pain Center offers a full spectrum of pain management and surgical solutions in one location, so your care is coordinated from the very first visit. Whether you’re exploring epidural steroid injections for the first time or looking for the next step in your treatment, our team is here to help you build a plan that works for you.

Contact Spine Team Pain Center today to schedule your appointment.

What Is an Epidural Steroid Injection?

An epidural steroid injection is a minimally invasive outpatient procedure used to reduce inflammation around the spinal nerves. During the procedure, a physician uses an epidural needle to slowly inject a combination of steroid medication and a local anesthetic into the epidural space, which is the area surrounding the spinal cord and spinal nerve roots within the spinal canal.

The steroid works to reduce swelling and nerve inflammation around an irritated nerve or compressed nerve root, while the local anesthetic offers momentary pain relief shortly after the injection. According to an NCBI medical overview of epidural steroid injections, this procedure is one of the most commonly performed interventions in interventional pain management for conditions affecting the lumbar spine, including herniated disc, lumbar spinal stenosis, and nerve compression from a bone spur.

A lumbar epidural steroid injection specifically targets the lumbar region of the lower spine and is frequently used to treat chronic low back pain and leg pain caused by pressure on the spinal nerve roots.

How Long Does Pain Relief Last After an Epidural Steroid Injection?

The duration of pain relief from epidural injections varies from person to person. Many patients report symptom relief beginning within a few days of their first injection, with the full effect typically felt within one to two weeks.

In terms of duration, here is what the research tells us:

• Short-term relief (up to 3 months): A 2025 systematic review published via the American Academy of Neurology found that epidural steroid injections probably reduce pain and disability in the short term, up to about three months, for patients with radiculopathy (pain radiating from a pinched or irritated nerve).
• Sciatica-related pain: A Cochrane review on corticosteroid injections for sciatica found a small average short-term benefit for leg pain associated with nerve root irritation, though individual responses varied.
• Beyond 3 months: Current evidence has not established reliable pain relief lasting six months or longer from a single steroid injection. Some patients do experience lasting pain relief for a few months or more, but this is not guaranteed.

It is important to understand that an epidural steroid injection is not a permanent solution. It is designed to provide temporary pain relief and reduce pain long enough for you to engage in physical therapy and rehabilitation exercises that address the root cause of your pain.

What Factors Affect How Long an Epidural Steroid Injection Lasts?

Several factors influence how long you can expect relief and how well the injection works for your specific situation:

Underlying Condition

The pain caused by a herniated disc pressing on a nerve root may respond differently from pain from spinal stenosis or degenerative changes in the lumbar spine. Conditions involving clear nerve compression tend to respond more favorably to epidural injections.

Severity of Inflammation

Patients with significant nerve inflammation may experience greater initial benefit, as the steroid medication directly targets the inflammatory process. Those with less inflammation or primarily structural issues may notice less improvement in their pain levels.

Overall Health and Activity Level

Patients who pair their injection with an active treatment plan that includes physical therapy and rehabilitation exercises tend to experience longer-lasting results. The injection creates a window of reduced pain that allows you to participate in these therapies more effectively.

Number of Previous Injections

Response to additional injections can vary. Some patients find that a series of injections spaced over time provides cumulative benefit, while others may notice diminishing returns. Your provider will work with you to determine whether repeat injections are appropriate as part of your chronic pain management plan.

What Happens During the Procedure?

An epidural steroid injection is an outpatient procedure that typically takes 15 to 30 minutes. Here’s what to expect:

1. Preparation: You’ll be positioned face-down or on your side. The skin at the injection site is cleaned and numbed.
2. Guided needle placement: Using fluoroscopic (X-ray) guidance, the physician carefully directs the epidural needle into the epidural space near the affected nerve or nerves in the spinal canal.
3. Injection: The physician will slowly inject the steroid and anesthetic mixture near the targeted spinal nerves.
4. Recovery: You’ll be monitored for a short period. Most patients go home within a few hours and can resume normal activities within a day or two.

Because a local anesthetic is included, some patients feel immediate but temporary relief right after the procedure. This typically wears off within a few hours, and there may be a brief period where your usual pain returns before the steroid takes full effect over the following days.

Potential Risks and Side Effects

Epidural steroid injections are generally considered safe, but like any medical procedure, they carry some risks. According to research on ESI efficacy and associated risks, potential side effects include:

• Temporary increase in pain at the injection site
• Severe headache from a dural puncture (when the needle accidentally punctures the membrane surrounding the spinal fluid)
• Temporary changes in blood pressure
• Temporary muscle weakness or numbness in the legs
• Infection or bleeding at the injection site, though this is rare due to careful avoidance of blood vessels

More serious complications, such as nerve injury or nerve damage, are rare but possible. Your provider at Spine Team Pain Center will discuss all risks with you before the procedure and take every precaution to ensure your safety.

When an Epidural Steroid Injection May Not Be Enough

While epidural injections are effective at providing pain relief for many patients, they are not a standalone treatment for every situation. If your pain returns after a few months or does not respond to your first injection, it does not mean you should lose hope. There are several next steps your care team may recommend:

• Medication management: Anti-inflammatory medication or other options to help manage ongoing symptoms.
• Physical therapy: Structured rehabilitation exercises focused on strengthening and stabilizing the spine to support long-term relief.
• Radiofrequency ablation: A procedure that uses heat to disrupt pain signals from specific nerves, potentially offering longer-lasting results for certain conditions.
• Surgical consultation: For patients with persistent nerve compression, spinal stenosis, or structural issues that have not responded to conservative care, more invasive procedures such as minimally invasive spine surgery may be worth exploring.

Recent research published in Frontiers in Pain Research continues to evaluate ESI outcomes and supports the idea that these injections work best as part of a broader, individualized treatment plan rather than as a single intervention.

At Spine Team Pain Center, we are the only group in Eastern Washington offering both interventional pain management and spine surgery services under one roof. This means your care team can seamlessly coordinate your pain relief injections with other therapies or surgical options to help you relieve sciatica pain and get back to the activities that matter most.

Frequently Asked Questions

Can an epidural steroid injection provide meaningful relief for axial low back pain?

Epidural steroid injections tend to be most effective for radicular pain, which is pain that travels along a nerve pathway, such as down the leg. For axial low back pain, which is pain localized to the lower back without radiation, the evidence is less clear. Your provider can help determine whether an ESI is the right approach or if other treatments may better address your specific type of pain.

Is an epidural steroid injection a standalone treatment?

No. An epidural steroid injection is designed to provide temporary relief so that you can participate in therapies like physical therapy that target the underlying cause of your pain. It works best as one part of a comprehensive pain management strategy rather than a one-time fix.

How soon after the injection will I feel relief, and could my usual pain come back?

Some patients notice short-term relief within a few hours due to the local anesthetic, but this wears off quickly. The steroid typically takes several days to reach its full effect. During this gap, your usual pain may briefly return before the steroid begins to reduce inflammation and relieve symptoms.

Should I lose hope if my first injection doesn’t help?

Not at all. Response to epidural injections varies, and a single injection may not provide meaningful relief for everyone. If your pain levels do not improve, your care team at Spine Team Pain Center can discuss alternatives, including additional injections, a pain med adjustment, or other procedures that may offer the temporary relief or longer-lasting results you need.

What is the difference between temporary relief and long-term relief from an ESI?

Temporary relief from an ESI typically lasts a few weeks to a few months and is considered short-term relief. Long-term relief is generally achieved when the injection is combined with rehabilitation exercises, lifestyle adjustments, and other therapies outlined in your treatment plan. The injection itself is not expected to be a permanent solution, but it can be a critical step toward lasting improvement based on findings from pain practice research.

Are there risks to having too many epidural steroid injections?

Most providers limit the number of epidural steroid injections to three or four per year. Repeated steroid exposure can lead to side effects such as changes in blood pressure, weakening of nearby bone and tissue, and diminished effectiveness over time. Your care team will monitor your response and ensure your treatment plan balances the benefits of invasive procedures with your overall health.