Epidural Steroid Injection: How It Works and How Long Relief Lasts

An epidural steroid injection delivers anti-inflammatory medicine near irritated spinal nerves to reduce back or neck pain for up to 3 months. During the procedure, your doctor numbs the injection site with a local anesthetic and guides a small needle into the epidural space. Then, the doctor injects steroid medicine near the affected nerve roots for targeted relief.

At Total Orthopedics & Sports Medicine, our doctors evaluate the source of your back or neck pain before they recommend an epidural steroid injection. We use precise image guidance to place the medication near the irritated spinal nerves. We also discuss the expected onset and duration of relief according to your condition and response to the injection. Call 855-321-6784 to schedule an appointment.

What Can You Expect After an Epidural Steroid Injection?

You may notice temporary numbness or immediate pain relief after the injection due to the local anesthetic. As this medicine wears off, your usual discomfort may return for a short period. During this time, the steroid gradually reduces inflammation and may provide more noticeable pain relief over the following days.

Here are the typical changes you can expect as recovery progresses:

• First 24 Hours: Rest, avoid heavy lifting, and apply ice to the injection site. Your legs may feel heavy, weak, or warm.
• Days 2 to 3: The local anesthetic wears off, and your usual discomfort may return or briefly increase.
• Days 4 to 7: The steroid starts to reduce inflammation, and sharp pain may begin to ease.
• Week 2 and Beyond: Pain relief often reaches its peak within one to two weeks.

Moreover, a 2025 American Academy of Neurology review analyzed 90 randomized trials on epidural steroid injections. Researchers found that these injections can reduce short-term pain and disability in people with cervical or lumbar radiculopathy (an irritated or compressed spinal nerve). The review found evidence for short-term benefits rather than for long-term pain relief. These results show that the amount and duration of relief can vary between patients.

What Does An Epidural Steroid Injection Do?

Steroid treatment delivers anti-inflammatory medicine into the epidural space near the spinal cord and irritated nerves. The corticosteroid reduces swelling around a specific nerve and decreases irritation from nerve compression. As the inflammation decreases, you may notice less shooting pain, numbness, or tingling in your back, neck, arms, or legs.

To provide relief at different stages, the injection often combines a local anesthetic with a corticosteroid. The anesthetic can provide immediate pain relief, while the steroid usually takes several days to reach its full effect. This combined approach can provide significant pain relief and improve mobility as nerve irritation decreases.

However, the injection reduces inflammation rather than treating the structural cause of your symptoms. Conditions such as degenerative disc disease, spinal stenosis, or bone spurs may still place pressure on the affected nerve. For example, epidural injections for sciatica can reduce inflammation around irritated nerve roots. This effect can ease pain that radiates from the lower back into the leg.

Where Does The Steroid Go During Epidural Treatment?

The corticosteroid medicine enters the epidural space, which surrounds the spinal cord and spinal nerves. This space lies between the vertebrae (spinal bones) and the protective sac around the spinal cord. Once the medicine reaches this space, it spreads around the irritated nerve roots to reduce inflammation. This direct delivery provides targeted relief near the source of nerve irritation.

Your doctor selects the injection location based on the spinal area linked to your symptoms:

• Cervical Spine: Medicine targets irritated nerves in the neck that can send pain into your arms.
• Thoracic Spine: The injection reaches nerves in the mid-back that may cause pain around your chest or ribs.
• Lumbar Spine: Your doctor targets the lower spinal nerves associated with back or leg pain.
• Caudal Spine: Targets the lower spinal nerves through the tailbone area.

How Soon Can You Feel Relief After a Steroid Injection?

You can usually notice significant pain relief within 2 to 7 days after an epidural steroid injection. Before the steroid takes effect, the local anesthetic may provide temporary relief for a few hours. As inflammation decreases, the steroid often reaches its maximum benefit within 1 to 2 weeks.

In fact, a 2024 prospective study published in Interventional Pain Medicine followed 108 patients for three weeks after an epidural steroid injection. Overall, 47.2% of all patients achieved at least 50% pain relief at three weeks. Among this group of successful responders, most had already noticed substantial relief within the first four days.

The study also reported the following key results after injection:

• Day 1: 72.5% of successful responders had already achieved more than 50% pain relief.
• Day 4: 94% of successful responders had achieved more than 50% relief by this point.
• Three Weeks: 47.2% of all analyzed patients achieved at least a 50% reduction in pain

How Long Does an Epidural Steroid Injection Last?

Most patients notice significant relief for about one to three months after an epidural steroid injection. In some cases, the benefits can continue for several months or up to a year. For a recent herniated disc, relief may last much longer if the inflammation fully resolves. However, chronic pain or recurrent disc problems may require repeat injections over time.

Important Note: You should limit epidural steroid injections to three or four per spinal region each year.

What Affects Recovery After an Epidural Steroid Injection?

Your underlying spinal condition and the severity of nerve pain can affect your recovery after an epidural steroid injection. The accuracy of the injection procedure and the type of steroid medication can also affect your response. Your activity level and rehabilitation after the procedure can further affect how long the relief lasts.

Here is how these factors can affect the duration of pain relief after the injection:

1. Underlying Cause of Pain

The source of your symptoms can determine how long the relief lasts after an epidural steroid injection. Acute inflammation or a recent disc herniation may improve as the affected tissue heals. In contrast, degenerative disc disease and other chronic spine conditions can continue to irritate the nerve. As a result, symptoms may return even after an initial improvement.

2. Severity and Type of Nerve Problem

The degree of nerve compression can determine the amount and duration of pain relief after treatment. Inflamed nerves without persistent compression may gain longer-lasting relief once the steroid reduces inflammation. However, substantial compression or nerve damage can reduce the treatment benefit. Your doctor evaluates these factors to determine the appropriate treatment plan.

3. Needle Position and Guidance

Accurate needle placement allows the medicine to reach the affected nerve area. During the medical procedure, doctors use imaging guidance to identify the correct site and guide the needle with precision. Once the needle reaches the targeted area, the doctor delivers the medication directly near the irritated nerve. With accurate placement, the medicine can reach the source of nerve irritation and provide more targeted relief.

4. Type of Medication

The type and dose of steroid can affect the duration of relief after the injection. Based on your symptoms and underlying condition, your doctor selects the appropriate corticosteroid and dose. Different corticosteroids have distinct properties that can affect how long their anti-inflammatory effects last. By reducing inflammation around the affected nerve, the selected medication can relieve pain.

5. Activity and Rehabilitation

Your activity level after the injection can affect the duration of recovery and symptom relief. During the first day, a short rest period can reduce stress on the injection area before you return to regular activity. As your symptoms improve, your doctor may recommend conservative treatments, such as therapeutic exercises tailored to your condition. With a structured rehabilitation plan, you can improve mobility and gradually resume normal activities.

How Can You Tell If Your Epidural Injection Worked?

An epidural steroid injection is considered effective when your nerve pain decreases after treatment. As pain decreases, you may also notice less discomfort when you walk, sit, sleep, or complete everyday tasks. These changes can show that irritation around the affected nerve has decreased. For this reason, your doctor may assess both pain reduction and improved function when they evaluate the treatment result.

However, the following signs may indicate that the injection did not provide enough relief:

• Persistent Nerve Pain: Your pain shows little or no reduction after the steroid has had enough time to take effect.
• Continued Radiating Pain: Sharp or burning pain radiating into your arm or leg continues at the same level.
• Limited Daily Activity: Pain still restricts your ability to sit, walk, sleep, or complete everyday tasks.
• No Functional Improvement: Your mobility and ability to complete normal activities show little or no change.

If you notice any of these signs, contact our doctors for further evaluation. We assess your pain level, mobility, and ability to complete daily activities after the injection. We may also review your medical history and perform a physical examination to determine why relief was limited. Based on these findings, we can recommend a personalized treatment plan to address your symptoms.

What Does An Epidural Injection Feel Like?

An epidural steroid injection usually causes a quick pinch and brief sting as your doctor injects a local anesthetic to numb the skin. Once the area is numb, you may notice mild pressure or a temporary tingling sensation rather than sharp pain. If you experience intense pain or an electric shock sensation during the injection procedure, tell your doctor right away.

During this minimally invasive procedure, you lie face down while your doctor uses fluoroscopy (real-time X-ray guidance) to place the needle near the affected nerve. The injection itself takes only a few minutes. Once the needle reaches the targeted area, your doctor delivers the medication directly near the irritated nerve. This targeted approach can treat pain and may delay the need for surgery in some cases.

After the injection, you may notice temporary soreness, numbness, or weakness near the treated area. Your care team provides post-procedure monitoring for about 15 to 30 minutes before you go home. Epidural steroid injections are generally safe when trained medical professionals perform the ESI procedure with appropriate imaging guidance.

When Might You Need Another Epidural Steroid Shot?

Your doctor may recommend another injection if the first shot reduced your pain, but the symptoms later return. Another shot may also be recommended if the first injection provided only partial relief. In fact, a PubMed study of 184 patients examined repeat epidural steroid injections after partial pain relief. Patients who received another injection after 2 to 3 weeks had longer pain relief.

They also needed fewer injections over the course of one year. A new disc herniation or sudden nerve pain flare-up may also require repeat treatment. However, your doctor considers the amount and duration of your previous relief before another injection.

Moreover, if your pain originates from the small joints in the spine rather than an irritated nerve, your doctor may recommend facet joint injections. These injections target inflammation within or around the affected facet joint. This approach allows your doctor to address the specific joint linked to your back or neck pain.

What Risks Should You Know Before An Epidural?

Temporary pain, headache, infection, nausea, and blood pressure changes are possible risks after an epidural steroid injection. In some cases, you may notice itching, temporary bladder problems, or incomplete pain relief after the injection. Your healthcare provider can monitor these reactions after the procedure and provide appropriate care if any problems occur.

The following serious complications can also occur in rare cases:

• Infection: Bacteria can enter the injection site and cause a local infection or meningitis.
• Bleeding or Hematoma: Bleeding can occur near the injection site or form a hematoma near the spine, especially if you take blood thinners.
• Nerve Damage: Injury to a spinal nerve can cause persistent pain, numbness, or weakness.
• Spinal Cord Injury: Paralysis or spinal cord injury is extremely rare, but it is a serious potential risk.

Important Note: Epidural steroid use is off-label, and the FDA warns of rare but serious neurological risks.

What Happens When Epidural Steroid Relief Wears Off?

Your back or nerve pain may gradually return as the steroid’s anti-inflammatory effect decreases. If the injection provided temporary relief, your doctor can use that response to reassess the source of your pain. Based on the patient’s condition, the doctor may recommend another injection or a different treatment approach, such as:

• Rehabilitation Exercises: Targeted exercises can improve spinal support, flexibility, and mobility.
• Medication: Oral medications may reduce pain and inflammation when appropriate.
• Nerve Blocks: These injections target specific nerves linked to persistent pain.
• Radiofrequency Ablation: This procedure can reduce pain from certain spinal joints for a longer period.
• Surgery: Your doctor may recommend surgery if structural nerve compression leads to persistent symptoms despite nonsurgical care.

When Should You See A Spine Specialist For Your Pain?

You should see a spine specialist if chronic back pain or neck pain does not improve with home care. An evaluation is also recommended for pain radiating into your arms or legs, numbness, tingling, or muscle weakness. If these symptoms limit walking, work, sleep, or daily tasks, a spine specialist can identify the cause and recommend appropriate treatment.

You should also seek urgent medical care if you notice any of the following warning signs:

• Loss of Bladder or Bowel Control: A sudden change in bladder or bowel function requires emergency care.
• Numbness in the Genital Area: Loss of sensation around the groin or inner thighs requires immediate evaluation.

Visit Total Orthopedics & Sports Medicine If Pain Returns After Your Epidural Injection!

If you are experiencing pain that limits your sleep, work, or daily activities, you may worry that the problem will continue to get worse. Numbness, weakness, or pain that radiates into your arms or legs can also interfere with walking, sitting, or completing routine tasks. As these symptoms persist, you may struggle with reduced mobility and disrupted sleep.

At Total Orthopedics & Sports Medicine, our spine specialists assess your symptoms, nerve function, and imaging results to identify the underlying cause of your pain. Based on these findings, we can recommend targeted nonsurgical care, injections, or surgical treatment when appropriate for your condition. We also accept most insurance plans and can review your coverage for spine care before treatment. Call 855-321-6784 or visit our clinics in Brooklyn,Bronx, West Orange, or Bayonne for back pain treatment.

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