Pain Worse After SI Joint Injection? Here's Why
- ReleviiMed

- Apr 15
- 17 min read
You’ve taken a proactive step toward managing your discomfort by getting an SI joint injection, but now you might be wondering why your pain worse after si joint injection. This experience is more common than you might think and typically doesn’t mean the treatment has failed. The injection contains two key components: a short-acting anesthetic and a long-acting steroid. The temporary pain increase often occurs in the gap between the first wearing off and the second kicking in. We’ll explain this process in detail, outline a typical recovery timeline, and provide simple tips to keep you comfortable.
Key Takeaways
- A Temporary Pain Increase is Normal
: It's common to feel more sore for one to three days after the procedure. This happens as the immediate anesthetic wears off before the anti-inflammatory steroid begins to work.
- Manage Soreness with Simple At-Home Care
: You can ease temporary discomfort by applying ice to the injection site, resting from strenuous activities for a couple of days, and using over-the-counter pain relievers as approved by your doctor.
- Understand Your Full Recovery Plan
: The injection is just one part of your treatment. Follow up with physical therapy to address the root cause of your pain, and be sure to contact your doctor if you develop signs of infection, a fever, or severe pain.
Why Does My SI Joint Hurt More After an Injection?
If you’ve just had a sacroiliac (SI) joint injection and find yourself in more pain than before, it’s completely understandable to feel concerned. You went in for pain relief, so feeling worse can be confusing and frustrating. The good news is that a temporary increase in pain is often a normal, expected part of the healing process. This initial discomfort doesn't mean the treatment has failed. In fact, it’s usually a sign that your body is responding to the procedure and beginning the healing process.
The injection you received contains two key ingredients: a local anesthetic for immediate numbing and a corticosteroid to reduce inflammation over the long term. The way these two medications work on different timelines is the primary reason for the temporary pain spike. Think of it as a brief gap between the short-term relief fading and the long-term solution kicking in. This period of discomfort can be unsettling, but it's a well-documented phase of recovery. Understanding this process can help you feel more confident as you recover and wait for the lasting relief you’re looking for from your pain management treatments. We'll walk through exactly why this happens and what you can expect in the days ahead.
Understanding the Temporary Pain Spike
It’s very common to experience a temporary increase in pain for one to three days following an SI joint injection. Right after the procedure, you might feel fantastic. That’s the local anesthetic at work, numbing the area and providing immediate relief. However, this effect is short-lived and typically wears off within a few hours. When it does, your original SI joint pain will return, and it might feel even more intense because of the added soreness from the injection site itself. This experience is a standard part of the recovery from Sacroiliac Joint Injections and not a cause for alarm.
Why This Is a Normal Part of the Process
So, why does this happen? The main reason is the timing difference between the two medications in the injection. The numbing medicine gives you that instant relief, but once it wears off, there's a waiting period before the steroid begins to work. The corticosteroid needs about two to three days to start reducing inflammation and providing significant pain relief. During this gap, you're feeling the underlying joint pain plus some minor irritation from the needle. Sometimes, the injection can also cause temporary muscle spasms, which add to the discomfort. This phase is a normal step in the Sacroiliac Joint Injection procedure as your body begins to heal.
What Causes Increased Pain After an SI Joint Injection?
If you’re feeling more pain after your SI joint injection, it’s completely understandable to be concerned. But in most cases, this is a normal and temporary part of the healing process. Your body is reacting to the procedure, and several factors can contribute to this short-term spike in discomfort. Think of it as a brief detour on your path to long-term relief. Understanding what’s happening inside your body can help ease your mind as you recover. Let's walk through the common reasons why you might feel a bit worse before you start to feel much better.
Post-Injection Soreness and Inflammation
Any time a needle is introduced into the body, there’s a chance of localized soreness and inflammation. The SI joint is no exception. Your body’s natural response is to send inflammatory cells to the area to begin the healing process, which can cause temporary tenderness, swelling, and pain right at the injection site. This is a very common reaction, and while it feels counterintuitive, it’s often a sign that your body is responding to the treatment. This initial soreness is usually mild and should start to fade within a few days.
The Gap Between Anesthetic and Steroid Relief
The injection you received is typically a two-part cocktail: a local anesthetic and a corticosteroid. The anesthetic provides immediate, short-term pain relief by numbing the area. This is why you might feel great for the first few hours after your procedure. However, this numbing effect wears off relatively quickly. The steroid, which is the long-term anti-inflammatory part of the treatment, takes a few days to start working. This period between the anesthetic wearing off and the steroid kicking in is when you might notice a return, or even an increase, in your original pain.
Muscle Spasms and Steroid Flare-Ups
Sometimes, the muscles surrounding the SI joint can react to the injection by tensing up or spasming, which can be uncomfortable. This is simply the body’s protective response to the needle and the fluid being introduced into the joint space. In some cases, patients may experience what’s known as a "steroid flare." This is a reaction where the steroid medication crystallizes in the joint before it’s absorbed, causing a temporary and sharp increase in inflammation and pain. While it can be alarming, a steroid flare is not an infection and typically resolves on its own within a day or two.
Minor Tissue Irritation from the Injection
The needle has to pass through several layers of tissue, including skin, fat, and muscle, to reach your SI joint. This path can cause minor irritation and bruising along the way. It’s a bit like getting a vaccination in your arm; the muscle can feel sore for a day or two afterward simply because it was disturbed. This type of discomfort is superficial and directly related to the physical procedure itself, not the medication. As the minor irritation in these tissues calms down, the soreness will subside.
How Long Does Post-Injection Pain Last?
It’s completely understandable to feel concerned if your pain gets a bit worse before it gets better. The good news is that this initial spike in discomfort is usually temporary and a normal part of the healing process. Knowing what to expect can make the recovery period feel much more manageable. Your body is adjusting to the treatment, and relief is often just around the corner. Let’s walk through a typical timeline and the factors that can influence your personal recovery journey.
Your Recovery Timeline: What to Expect
It’s very common for pain to increase for one to three days after your SI joint injection. Think of it like the soreness you feel after a good workout. Your body is reacting to the needle and the fluid that was introduced. This temporary discomfort is often a combination of soreness at the injection site and the local anesthetic wearing off before the steroid has had a chance to start its work. Try to be patient with your body during this time. This initial phase is short-lived, and it’s a sign that the treatment process has begun.
When the Steroid Medication Begins to Work
The steroid is the part of the injection that provides long-term relief, but it doesn’t work instantly. It typically takes about two to three days for the anti-inflammatory effects to kick in and start reducing your pain. While the initial anesthetic provides immediate but short-lived numbness, the steroid is the true workhorse of the treatment. Once it starts working, you should notice a gradual decrease in pain and inflammation. The goal of these advanced treatments is to provide lasting relief, and this brief waiting period is a necessary step to get there.
Factors That Can Influence Your Healing Time
Everyone’s body responds to treatment a little differently, so your healing time might not be exactly the same as someone else’s. Factors like the level of inflammation in your joint before the injection and your body’s unique reaction to steroids can play a role. If your pain returns quickly after the numbing medicine wears off and doesn't improve after a few days, it’s important to let your doctor know. Keeping track of your symptoms can provide valuable information for your care team and help them tailor your pain management plan. Always feel empowered to contact our office with any questions.
How to Manage Pain After Your SI Joint Injection
Feeling a bit more sore after your SI joint injection is a normal part of the healing process, but that doesn't mean you have to just grit your teeth and bear it. The good news is that this temporary discomfort is manageable. Taking a few proactive steps in the first few days after your procedure can make a significant difference in your comfort levels and help set you up for a smoother recovery. Think of this as the final little hurdle before you start feeling the real benefits of the treatment.
At Releviimed, we want you to feel empowered and prepared for every step of your pain management journey. Our team is always here to answer your questions, but there are also several simple, effective strategies you can use at home to soothe the injection site and ease any temporary pain. From simple at-home remedies to knowing when to rest, these tips will help you get through the initial recovery period with greater ease. Taking care of yourself now allows the medication to do its job effectively, paving the way for long-term relief.
Use Ice and Heat to Soothe Discomfort
One of the simplest and most effective ways to manage post-injection soreness is with temperature therapy. Applying a cold pack to the injection site can work wonders for reducing swelling and numbing the area, which helps dull the pain. You can use an ice pack on the injection site for about 15-20 minutes, 3-4 times a day, especially during the first 48 hours. Just be sure to wrap the ice pack in a thin towel to protect your skin. After a couple of days, you might find that gentle heat, like a warm compress, feels more soothing by helping to relax the surrounding muscles.
Consider Over-the-Counter Pain Relievers
It's generally fine to manage any lingering soreness with over-the-counter medications. As the University of Maryland Rehabilitation & Orthopaedic Institute notes, "You can take your usual pain medicine after the shot." Medications like acetaminophen (Tylenol) or nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen (Advil) can be very helpful. However, it's always best to confirm with your doctor which option is right for you, especially if you have other health conditions or are taking other medications. Following the recommended dosage on the package will help you stay comfortable while the steroid medication begins to take effect.
Modify Your Activities and Prioritize Rest
Giving your body time to heal is essential after an SI joint injection. Plan to take it easy for a day or two following your procedure. This doesn't mean you have to be on complete bed rest, but you should avoid strenuous activities like heavy lifting, high-impact exercise, or intense physical labor. As Cedars-Sinai advises, you should rest for the first 1-2 days, then you can resume activities in moderation. Listening to your body is key. If an activity causes your pain to flare up, it’s a sign to scale back. This brief period of rest allows the inflammation to subside and gives the pain management treatment the best chance to work.
Track Your Symptoms in a Pain Diary
Keeping a simple log of your symptoms can be incredibly useful for both you and your doctor. A pain diary helps you notice patterns and track your progress as you recover. Note your pain levels on a scale of 1 to 10, what activities make you feel better or worse, and when you start to feel significant relief. This information provides valuable feedback for your doctor to "understand how well the injection worked." You can bring this diary to your follow-up appointment or share your observations through the patient portal. This detailed record helps your care team fine-tune your treatment plan for the best possible outcome.
When Should You Call Your Doctor?
While a temporary increase in pain is a normal part of the healing process for many, it’s also important to listen to your body and know when something might be wrong. Trust your instincts. If a symptom feels severe or worrying, it’s always best to err on the side of caution and get in touch with your medical team. Certain signs are definite red flags that require a prompt call to your doctor to ensure your recovery stays on the right track. Knowing what to look for can give you peace of mind and help you take the right steps at the right time.
Red Flags That Require Immediate Attention
Some symptoms are more serious and require immediate medical attention. Don't wait to see if these get better on their own. Please contact our office right away if you experience any of the following after your injection:
Severe or unbearable pain that isn't managed by your prescribed care plan
New or worsening numbness or weakness in your legs
A fever of 100.5 degrees Fahrenheit or higher
These symptoms can indicate a more serious issue that needs to be addressed quickly. Getting a prompt evaluation is the best way to ensure your health and safety.
Signs of Infection or Other Complications
An infection is a rare but possible complication after any injection. It’s important to keep the injection site clean and monitor it for any changes. Be on the lookout for classic signs of infection, which include increasing redness, swelling, heat, or any drainage or pus from the area where you received the shot. These are clear signals from your body that something isn't right. If you notice any of these signs, you should call your doctor to have it checked out. Early treatment is key to resolving the issue effectively.
Pain That Doesn't Improve Within the Expected Timeframe
The steroid medication in your SI joint injection needs time to work, but you should start to feel some improvement within the first week or so. If your pain hasn't started to get better within 7 to 10 days, it’s a good idea to let your doctor know. This doesn't necessarily mean something is wrong, but it may indicate that your body is responding differently to the treatment. A follow-up can help determine the next steps, whether that involves adjusting your care plan or exploring other treatment options. You can always schedule an appointment to discuss your progress.
What Factors Might Increase Post-Injection Pain?
It’s completely normal to wonder why you might be feeling more pain when you expected relief. While a temporary increase in discomfort is a known part of the process for some, several factors can influence how you feel after your SI joint injection. Everyone’s body and situation are unique, so your experience might differ from someone else’s. Understanding what can contribute to this temporary pain spike can help you feel more prepared and confident in your recovery journey.
Pre-Existing Inflammation Levels
If your SI joint was significantly inflamed before the procedure, you might experience a more noticeable pain increase. Here’s why: the injection contains both a local anesthetic for immediate relief and a steroid for long-term relief. The anesthetic wears off within a few hours, but the steroid medication can take a day or two to start reducing inflammation. During this gap, your original pain can return, sometimes feeling more intense without the anesthetic to numb it. Think of it as a brief waiting period before the powerful anti-inflammatory effects kick in and start providing lasting comfort.
Your Body’s Unique Response to Steroids
Just as people react differently to certain foods or medications, every body has a unique response to steroid injections. For some, this can mean a temporary "steroid flare," where the medication crystallizes in the joint and causes a brief spike in inflammation and pain for a day or two. You might also feel some soreness right at the injection site, which is perfectly normal. At Releviimed, our specialists use precise, guided techniques to ensure the medication is delivered effectively, but your body’s individual healing process ultimately shapes your post-injection experience and the treatments that work best for you.
The Condition of the Joint Itself
The underlying health of your sacroiliac joint also plays a big role in your recovery. If the joint has significant arthritis or instability, the injection might provide relief, but the baseline level of irritation can still make it sensitive after the procedure. In some cases, if the pain returns very quickly after the numbing agent wears off and doesn't improve, it could indicate that the SI joint isn't the primary source of your pain. This is valuable diagnostic information that helps your doctor refine your customized care plan and explore other avenues for getting you the relief you deserve.
How Physical Therapy Helps Your Recovery
Think of your SI joint injection and physical therapy as a powerful team working together. The injection is fantastic at calming down the intense, immediate pain and inflammation, but it doesn't always fix the underlying issues that caused the problem. That’s where physical therapy comes in. It’s your next strategic step toward lasting relief. By taking advantage of the pain-free window the injection provides, you can work with a physical therapist to address the root causes of your discomfort, like muscle imbalances or instability. This combination is often the key to moving from temporary relief to long-term wellness.
At Releviimed, we see physical therapy as an essential part of our comprehensive pain management solutions. It empowers you to take an active role in your recovery, building strength and resilience to prevent future flare-ups. Instead of just masking the pain, you’re actively working to correct the problem for good. Your therapist creates a personalized plan that not only helps you heal but also teaches you how to protect your SI joint from future injury, helping you regain confidence in your body.
The Benefits of Gentle Movement
After an SI joint injection, the temporary pain relief gives you a valuable opportunity to start moving again without the usual discomfort. A physical therapist will guide you through gentle, controlled movements designed specifically for you. This isn't about pushing through pain; it's about carefully reintroducing motion to the area. The SI joint is a unique joint that absorbs a lot of shock for your body, and these targeted exercises help restore its proper function and flexibility. This process helps reduce stiffness, improve your range of motion, and retrain your body to move in a healthier, more efficient way.
Strengthening Exercises for Long-Term Stability
Once the initial inflammation is under control, the focus of physical therapy often shifts to building strength. Your therapist will likely have you work on strengthening your core and abdominal muscles. Think of these muscles as a natural brace for your pelvis and lower back. When your core is strong and stable, it takes a significant amount of pressure off your SI joint, which can dramatically reduce pain and prevent it from returning. These strengthening exercises are crucial for creating long-term stability, ensuring your SI joint has the support it needs to function properly day-to-day.
What to Expect as the Steroid Kicks In
After your SI joint injection, you’ll likely be eager to feel relief. It’s helpful to know that the injection contains two different medications that work on separate timelines: a local anesthetic for immediate comfort and a corticosteroid to provide longer-lasting relief. Understanding how each one works will give you a clearer picture of your recovery path and help you know what to expect in the hours and days following your procedure. This process is a waiting game, but patience is key as your body begins to heal.
The Typical Timeline for Pain Relief
The numbing medicine in the injection gets to work right away, which is why you might feel significant pain relief almost immediately. This effect is temporary and usually lasts for a few hours. Once it wears off, don't be surprised if your original pain returns. The real therapeutic part of the injection, the steroid, takes longer to kick in. It needs time to reduce inflammation in the joint. Most people start to feel the steroid’s effects within one to two days, but for some, it can take up to a week. It’s one of the most common pain management treatments for a reason, but it requires a little patience.
Setting Realistic Expectations for Your Results
It’s completely normal for your pain to feel a bit worse for a day or two after the injection. This often happens in the window after the numbing agent has worn off but before the steroid has started its anti-inflammatory work. You might also have some soreness right at the injection site, similar to how your arm feels after a flu shot. Many people experience this temporary spike in pain, so try not to worry if it happens to you. It’s usually a sign that your body is responding to the treatment. Our team believes in honest communication, and we want you to be fully prepared for every step of your recovery.
How to Prepare for a Smooth Recovery
A little preparation before your SI joint injection can make a world of difference during your recovery. Taking a few simple steps beforehand helps you manage any temporary discomfort and allows your body to begin the healing process without added stress. Think of it as creating the perfect environment for the medication to do its work. By planning for a day or two of rest and setting up your home for comfort, you can feel more in control and focus on what matters most: feeling better.
Plan for Temporary Activity Restrictions
First things first, you will need to arrange for a responsible adult to drive you home after your procedure. You won't be able to drive for the rest of the day, so having a friend, family member, or rideshare planned is essential for your safety. It’s also a good idea to clear your schedule for the next 24 to 48 hours. The initial numbing medicine will wear off, and you might experience some soreness at the injection site. Your pain might even feel a bit worse before it gets better. Giving yourself permission to rest and avoiding any strenuous activity is a key part of the recovery process for many pain management treatments.
Create a Comfortable Recovery Space at Home
Before you leave for your appointment, take a few minutes to set up a cozy recovery spot. Make sure you have ice packs in the freezer, as applying one to the area for 15-20 minutes at a time can help soothe discomfort. Gather some comfortable pillows to support your back and hips while you rest. It’s also helpful to place everything you might need, like your phone, the remote, a book, and some water, within arm's reach. This minimizes how often you have to get up and move around. Following your doctor’s specific aftercare instructions is crucial for addressing your unique pain focus areas and ensuring a smooth transition back to your daily activities, including physical therapy.
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Frequently Asked Questions
Why does my SI joint hurt more after the injection? It’s very common to feel a temporary increase in pain after your injection, so try not to worry. The injection contains two medications: a short-acting numbing agent and a long-acting steroid. You feel great at first because of the numbing, but that wears off in a few hours. The steroid needs a couple of days to start reducing inflammation, so you might feel your original pain plus some soreness from the needle during that brief gap.
How long will this increased pain last? This initial period of discomfort is usually short-lived. Most people find that the post-injection soreness and pain spike lasts for about one to three days. After that, the steroid medication should begin to take effect, and you'll start to notice a gradual improvement. If your pain hasn't started to get better within a week, it's a good idea to check in with your doctor.
What can I do at home to feel more comfortable during recovery? You can absolutely take steps to manage the soreness. Using an ice pack on the injection site for 15-20 minutes at a time can help reduce swelling and numb the area. It’s also important to take it easy for a day or two, avoiding any strenuous activities that could irritate the joint. You can also talk to your doctor about using over-the-counter pain relievers to help you stay comfortable.
When should I be concerned enough to call my doctor? While some soreness is normal, you should call your doctor if you experience severe or worsening pain that isn't getting better. Other red flags include a fever over 100.5 degrees, or signs of infection at the injection site, such as increasing redness, heat, swelling, or any drainage. It's always best to reach out if you feel like something isn't right.
Is the injection the only step, or is there more to my treatment? The injection is a powerful tool for reducing inflammation, but it works best as part of a larger plan. It creates a valuable window of pain relief that makes physical therapy much more effective. Physical therapy helps address the root causes of your SI joint pain, like muscle imbalances or instability, by strengthening the supporting muscles around your pelvis and core for long-term stability.







