Sciatica: what helps with pain shooting down your leg?

Sciatica is one of those conditions where the patient walks into the consulting room and you can often spot it from the doorway: a lean to one side, a hand pressed into the buttock, a slightly delayed stride.

It is a common problem, affecting perhaps four in ten adults at some point in their lives, and although the pain can be savage, the long-term outlook for most people is genuinely good.

Around three-quarters of cases settle with conservative care inside three months.

This guide sets out what I usually recommend in clinic, the medication options worth knowing about, and the signs that should send you to A&E rather than the pharmacy.

What is sciatica, really?

Sciatica is not a diagnosis in itself but a description. It refers to pain travelling along the distribution of the sciatic nerve, which is formed from nerve roots in the lower lumbar spine and runs through the buttock and down the back of the leg to the foot. Anything that irritates or compresses those nerve roots can cause it. The commonest culprit is a prolapsed intervertebral disc pressing on a root as it exits the spine. Other causes include lumbar spinal stenosis, facet joint arthritis, and less commonly a piriformis muscle squeezing the nerve in the buttock. The NHS sciatica page has a clear overview for patients and is a good starting point.

The classic story is a sudden or gradual onset of pain felt more in the leg than the back, often described as electric, burning or shooting, sometimes with pins and needles or numbness in a specific strip of skin, occasionally with weakness in a particular movement such as raising the big toe.

Sitting, coughing and sneezing usually make it worse. Lying on the unaffected side with the painful leg propped on a pillow often brings the quickest relief.

Is it really sciatica or something else?

Not all leg pain that starts in the back is nerve root pain.

A lot of what patients call sciatica is actually referred pain from a tight or irritated piriformis or gluteal muscle, which aches in the buttock and back of the thigh but does not cross the knee or cause numbness.

True sciatica generally travels below the knee and follows a recognisable nerve pattern.

Hip pathology, vascular claudication and even shingles can mimic it, which is why a careful examination matters.

Self-care: the first two weeks

The single most important message for new sciatica is: keep moving. Bed rest, once the standard advice, has been firmly knocked off its perch. The evidence reviewed by Versus Arthritis is consistent: prolonged rest prolongs pain. Graded activity, within tolerable limits, speeds recovery. What this looks like in practice:

• Short, frequent walks. Even five minutes at a time, several times a day, is better than a single long walk or a day on the sofa.
• Change position often. Sitting for long stretches is the villain. Stand up every 20 to 30 minutes, or try a standing desk arrangement.
• Heat for muscle spasm, ice for acute nerve flare. A wheat bag on the low back or buttock for 15 minutes is soothing. Some patients prefer a cold pack wrapped in a tea towel along the painful nerve strip for the same duration.
• Sleep position. On the side, with a pillow between the knees, keeps the pelvis neutral. On the back, a pillow under the knees reduces nerve stretch.
• Gentle mobilisation. Pelvic tilts, knee hugs and the sloppy-pushup (lying on the front, elbows propped, relaxing the low back into extension) help many patients. Start slowly and stop if a movement sends pain down the leg.

Medication: what works and what does not

The medication conversation in sciatica has shifted considerably in the last decade. The headline is that drugs traditionally used for neuropathic pain, such as gabapentin and pregabalin, perform poorly in sciatica trials and are no longer routinely recommended. NSAIDs remain the first line for most people, supplemented by paracetamol and, occasionally, a short course of a weak opioid. The British National Formulary is the reference I use for doses and cautions.

Naproxen

My usual starting choice. Naproxen 250 to 500 mg twice a day with food, for one to two weeks depending on response, offers a clean balance of effect and tolerability. If sleep is shattered by the pain, the evening dose can be taken a little earlier so the analgesia runs into the night.

Diclofenac

A stronger anti-inflammatory option when naproxen has not cut through. Diclofenac 50 mg two or three times daily is the standard adult dose. Short courses are safer than long ones, and I avoid it in patients with significant cardiovascular disease. Topical diclofenac rubbed into the low back and buttock can be a useful adjunct with very little systemic risk.

Etoricoxib and meloxicam

When the stomach is the weak link, the COX-2 selective agents come into their own. Etoricoxib 60 mg once daily gives steady 24-hour cover, which many patients with sciatica prefer. Meloxicam 7.5 to 15 mg once daily is a gentler alternative with a similar profile. Both still require caution if there is significant cardiovascular or renal disease.

Paracetamol, codeine and the older favourites

Paracetamol 1 g four times a day pairs well with any NSAID. A short course of codeine, often as co-codamol, can help patients sleep during the worst flare, but I keep it brief, usually a week or less, to avoid constipation and dependence. Amitriptyline 10 to 25 mg at night sometimes helps with sleep and nerve discomfort, though the evidence in sciatica is mixed. More detail on the broader neuropathic family is on our neuropathic pain page.

Physiotherapy and beyond

If symptoms have not clearly improved by three to four weeks, or if you want to accelerate recovery, a physiotherapist is the next step.

NHS services in many areas now accept self-referrals. Treatment usually includes neural gliding exercises, core and gluteal strengthening, and pacing advice.

A skilled physio also rules in or out the need for further investigation.

Imaging in the form of an MRI scan is not needed in the first six weeks for most patients, because findings rarely change management and disc bulges are common in people with no pain at all.

Scans are more useful when symptoms are severe, unusual, or not settling, and especially when surgery is being considered.

For a minority of patients, referral for a nerve root injection of steroid and local anaesthetic, or for a spinal surgical opinion, is appropriate after three months of unresolving pain or earlier with progressive neurological deficit.

Microdiscectomy for a clearly compressing disc has good outcomes in selected patients.

Red flags: cauda equina and other emergencies

The condition I never want you to miss is cauda equina syndrome, a neurosurgical emergency caused by compression of the nerves at the bottom of the spinal cord. Go straight to A&E, not the GP, for any of:

• New difficulty passing urine, or a new feeling that you cannot tell when the bladder is full.
• Loss of bowel control or new severe constipation with numbness.
• Numbness in the saddle area, between the legs, around the back passage or genitals.
• Rapidly progressive weakness in one or both legs, or new sexual dysfunction.
• Severe pain with fever, night sweats or unexplained weight loss.
• Pain after a significant fall, in someone on long-term steroids, or with a history of cancer.

The NHS guidance on cauda equina syndrome reinforces how time critical these symptoms are. Err on the side of going in.

Pregnancy, older adults and driving

Sciatica in pregnancy is common, particularly in the third trimester.

NSAIDs are avoided, so the mainstay is paracetamol, warmth, a supportive maternity belt, side-lying with a pillow, and physiotherapy. Codeine is reserved for short-term use.

In older adults, spinal stenosis often underlies sciatica and presents as pain that eases with sitting or leaning on a shopping trolley.

Driving is not forbidden but do not get behind the wheel if pain, medication or weakness compromises your reactions.

Preventing recurrence

Once the pain has gone, a sensible maintenance plan keeps most people out of my consulting room:

1. Move regularly, sit less. A desk timer is a patient's best friend.
2. Keep the core strong. Pilates or a simple daily routine of bridges, dead bugs and planks is enough for most.
3. Manage weight. Every extra kilogram around the midriff loads the lumbar discs.
4. Lift with the legs, hug loads close, and split heavy jobs across several trips.
5. Do not smoke. Nicotine impairs disc nutrition and is a genuine risk factor for recurrence.

More general tips on living well with back and leg pain are on our pain relief hub and our musculoskeletal conditions page.

The bottom line

Sciatica feels dramatic but usually behaves well.

Keep moving within comfort, use a well-chosen NSAID properly for a week or two, bring in physiotherapy early if things are slow to settle, and know the red flags.

The pain may take a few weeks to fade entirely, but most patients are back to normal life without surgery, and a modest maintenance routine keeps the next flare from ever arriving.

Common questions patients ask me about sciatica

How long will it last?

Most new sciatica improves substantially within four to six weeks and is fully or nearly resolved by three months.

A small minority have pain that grumbles for longer, and a smaller minority still need surgical input.

The curve of recovery is rarely linear: expect good days and bad days, with the trend heading in the right direction across weeks rather than hours.

Is walking good or bad?

Walking within comfort is good. Sitting for long periods is the enemy.

If walking 20 minutes sets the nerve off, try four five minute walks through the day instead.

Most patients find a short, flat walk actually eases symptoms once they are moving.

Should I try a lumbar support or back brace?

A brief period of lumbar support can feel reassuring, but long-term bracing deconditions the core muscles and is counterproductive.

A rolled towel tucked into the small of the back when sitting, or a sensible office chair with decent lumbar support, is plenty.

Can I keep working?

In most cases yes, with modifications. A sit-stand desk, regular micro-breaks, a review of lifting demands and possibly a short phased return are usually all that is needed.

Sickness absence longer than two weeks is associated with poorer outcomes, so staying connected to work is genuinely part of the treatment plan.

What about mattresses and sleeping?

A medium-firm mattress usually suits sciatica best. Side-lying with a pillow between the knees is the position most patients find kindest to the nerve. A thin pillow between the ankles helps too when the leg pain is at its worst.

Will a scan help?

An MRI in the first six weeks rarely changes management, because disc bulges are common findings in people without symptoms and the natural history of sciatica is so favourable.

Scans are reserved for persistent or severe cases, or where surgery is being actively considered.

A week by week plan you can follow

The plan I typically hand to a patient with new sciatica reads like this.

1. Week 1. Heat or cold as preferred, 15 minutes several times a day. Naproxen 500 mg twice daily with food plus paracetamol 1 g four times daily. Short walks, frequent position changes. Gentle pelvic tilts and knee hugs.
2. Week 2. Add sloppy pushups and gentle nerve glides if tolerated. Begin tapering codeine if used. Return to light work with modifications.
3. Week 3 to 4. Introduce core strengthening: bridges, dead bugs, bird dogs. Physiotherapy self-referral if symptoms still limiting daily life.
4. Week 5 onwards. Progress to pilates, swimming or a supervised gym programme. Review with the GP if pain is unchanged or worsening, or at any point if red flag symptoms appear.

Stick to the plan, be patient, and trust the trajectory. Most sciatica stories end quietly with the patient realising, one day, that they simply have not thought about their leg for a week.