A burning sensation in your lower back is typically a nerve-related symptom, not a muscle one. It can stem from compressed spinal nerves, worn-down discs, conditions like shingles or its aftermath, or inflammation around the spinal cord’s protective membranes. Treatment depends on the underlying cause, but several approaches can reduce or eliminate the burning at home while you work toward a longer-term solution.
What Causes the Burning Feeling
Burning pain feels different from a dull ache or sharp stab because it usually involves nerve irritation rather than pure tissue damage. The most common culprits in the lower back include disc degeneration (where the cushions between your vertebrae wear down over time and press on nearby nerves), spinal stenosis (narrowing of the spinal canal), and radiculopathy, where a nerve root gets compressed as it exits the spine. Back spasms and disc herniations can also produce a burning quality.
Less commonly, the burning comes from postherpetic neuralgia, a complication of shingles. This feels like burning or stinging pain that persists for weeks, months, or even years after the shingles rash disappears. The pain stays in the same location as the original rash, even though no rash is visible anymore. Some people feel it constantly; others have it come and go. Another possibility is arachnoiditis, an inflammatory condition of the membranes surrounding spinal nerves, which can be triggered by spinal surgery, direct spine injury, or chronic nerve compression.
Heat Therapy Works Fast
For most burning lower back pain, heat is your best first-line home treatment. It seems counterintuitive to add warmth to something that already feels like it’s burning, but heat activates pain-relief pathways in a way that cooler temperatures don’t. At temperatures around 45°C (roughly the heat of a hot shower or a well-warmed heating pad), your body activates specific receptors that dampen pain signaling. This is why a hot shower or bath tends to feel more soothing than a lukewarm one.
The relief kicks in quickly. In studies on chronic low back pain, pain reduction began within five minutes of applying heat, and a single 30-minute session provided relief that lasted an additional two hours after the heat source was removed. Aim for 20 to 30 minutes per session. A heating pad, a microwavable heat wrap, or a hot water bottle all work. Just keep a layer of fabric between the heat source and your skin to avoid burns.
Nerve Mobilization and Targeted Exercise
When a nerve is compressed or irritated, the tissue around it can become swollen and mechanically restricted. Physical therapy techniques called neural mobilization (sometimes referred to as “nerve flossing”) gently glide the nerve through its surrounding tissues to reduce swelling within the nerve itself and restore normal movement between the nerve and the connective tissue around it. Research shows these techniques reduce pain sensitivity in the nerve and can improve range of motion, particularly in people with sciatica-type symptoms radiating from the lower back.
Core stabilization exercises are another key piece. Strengthening the deep muscles that support your spine takes pressure off irritated nerves over time. A physical therapist can identify which movements provoke your symptoms and design a program that avoids aggravating the nerve while building the stability you need. The McKenzie method, a specific approach that uses repeated movements and sustained postures, is commonly used for disc-related problems and can help “centralize” pain (move it from the leg back toward the spine, which is actually a sign of improvement).
You can start gentle movement at home. Lying on your back with your knees bent and feet flat, then slowly letting both knees fall to one side and holding for 20 to 30 seconds, is a low-risk way to gently mobilize the lower spine. But if your burning sensation is accompanied by leg symptoms, it’s worth getting a professional assessment before doing targeted nerve exercises on your own.
Workstation and Posture Changes
If you sit for long stretches, your setup may be feeding the problem. A chair that doesn’t support your lower back lets your lumbar spine flatten out, increasing pressure on discs and nerves. Your chair should allow your feet to rest flat on the floor with your knees at a 90-degree angle, and it should support the natural inward curve of your lower back. If your chair doesn’t have built-in lumbar support, a small pillow or a lumbar cushion placed behind your lower back fills the gap.
Keep your keyboard and mouse close enough that your elbows stay at a roughly 90-degree angle, preventing you from leaning forward. Standing desks or sit-stand converters let you alternate positions throughout the day, which matters because no single posture is good for hours on end. The most important habit is taking short breaks to stand, stretch, and walk every 30 minutes. Even a 60-second walk to refill your water does more for a compressed nerve than the most expensive office chair.
Topical Pain Relief
Over-the-counter topical treatments can target burning pain right where you feel it. Capsaicin cream, derived from chili peppers, works by depleting a chemical that nerve cells use to send pain signals. It requires consistency: apply it three or four times a day and rub it in thoroughly. The first few applications may temporarily increase the burning sensation before it starts helping, which is normal and fades with regular use.
Menthol-based creams and gels create a cooling sensation that can override burning signals in the short term. Lidocaine patches, available over the counter in lower concentrations, numb the area directly and can be useful for localized burning, especially from postherpetic neuralgia. These topical options work best as part of a broader approach rather than as standalone treatments.
TENS Units
A transcutaneous electrical nerve stimulation (TENS) unit sends mild electrical pulses through electrode pads placed on your skin. The idea is that these pulses interfere with pain signals traveling to your brain. TENS units are used for a range of conditions including neuropathy, which makes them relevant for burning-type pain. You can adjust the intensity, frequency, and duration of pulses until the sensation feels strong but comfortable.
The evidence on TENS is mixed. Some studies show meaningful pain relief, while others find it performs no better than a placebo. Success likely depends on electrode placement, your specific condition, and the settings you use. That said, TENS units are inexpensive, safe to use at home, and worth trying. Some people find them particularly helpful during flare-ups or while sitting at a desk.
Spinal Injections for Persistent Pain
When home treatments and physical therapy aren’t enough, epidural steroid injections can provide significant relief. These deliver anti-inflammatory medication directly to the area around the irritated nerve. For people with radicular pain from a herniated disc, up to 70% felt at least 50% better within one to two months of receiving an injection, and 40% still felt better at 12 months.
The relief most often lasts three months or more, with many people experiencing benefits for up to six months. Some get relief lasting a full year. These injections are not a cure, but they can create a window of reduced pain that makes it possible to engage in physical therapy and rebuild strength around the spine. Most people receive a series of up to three injections spaced several weeks apart.
Red Flags That Need Immediate Attention
Most burning lower back pain improves with the approaches above, but certain symptoms signal a serious condition called cauda equina syndrome, where the bundle of nerves at the base of the spine becomes severely compressed. This is a surgical emergency. The warning signs include difficulty urinating or not feeling the urge to urinate even when your bladder is full, loss of bowel control, numbness in the area where you’d sit on a saddle (groin, inner thighs, buttocks), and progressive weakness in one or both legs. Sexual dysfunction that develops alongside back symptoms is another red flag.
If you experience any combination of these symptoms, go to the emergency room. Surgery within 48 hours of symptom onset significantly improves outcomes for nerve function, bladder control, and leg strength. Waiting longer risks permanent damage.
Getting the Right Diagnosis
If your burning sensation persists beyond a few weeks or comes with numbness, tingling, or weakness in your legs, imaging like an MRI can identify disc herniations, stenosis, or other structural causes. One common misconception is that nerve conduction studies or electromyography (EMG) can pinpoint the cause of back pain itself. The American Academy of Family Physicians specifically recommends against using these tests for back-only pain. They’re only useful when there’s concern about nerve damage causing symptoms in the arms or legs, like numbness or weakness, not for diagnosing the source of pain in the spine itself.
A clear diagnosis matters because it shapes your treatment plan. Burning from a herniated disc responds well to physical therapy and, if needed, injections. Burning from postherpetic neuralgia requires a different approach focused on nerve-calming medications. Burning from arachnoiditis is managed differently still. The sensation may feel similar across these conditions, but the path forward depends on what’s driving it.