Non-surgical treatment for back pain and sciatica: medicines, physiotherapy and exercise, injections, and when waiting is reasonable — or not

People with back pain or pain radiating down the leg tend to ask the same questions at their first visit: do I need surgery, how is it treated if I don't, and how long should I wait and see? These are reasonable questions, because the pain can disrupt work, sleep and everyday life.

Dr. Siravich (Bright) has prepared this article to explain what non-surgical (conservative) treatment involves, how much each part can be expected to help according to current medical evidence, when waiting is a reasonable choice, and when it is not. It draws on the clinical guidelines of NICE (United Kingdom) and the American College of Physicians (United States), and on Cochrane systematic reviews.

The key fact: most back pain improves with time

The American College of Physicians (ACP) guideline states that most patients with acute or subacute low back pain improve over time, whatever treatment they receive. For that reason, it recommends starting with treatments that do not involve medicines, and choosing a suitable medicine only if one is wanted.

For more severe sciatica, a randomised trial published in the New England Journal of Medicine studied patients who had already had severe leg pain for 6 to 12 weeks, comparing early surgery with continued non-surgical care and surgery only if needed. In the non-surgical group, about 4 in 10 people (39%) went on to have surgery. At one year, the overall outcomes of the two groups were similar, but leg pain eased faster in the early-surgery group.

Read plainly, this says two things: starting with non-surgical treatment is a reasonable choice for many people, and for the right patient, surgery may bring relief sooner. The choice therefore depends on how much the symptoms affect your life and what matters most to you, and it is a decision to make together with your doctor.

Self-care and daily activity

The foundation of non-surgical treatment is informed self-care. NICE recommends giving people information about the nature of low back pain and sciatica, and encouraging them to continue with their normal activities. In practice, this means:

• Keep moving and carry on with daily activities as far as you can — rather than lying still in bed for long periods, and build up activity gradually as your body allows.
• Return to work or your usual routine when you are able — NICE recommends supporting a return to work and normal daily activities.
• Heat — the ACP guideline lists superficial heat as one of the first options for acute or subacute low back pain (moderate-quality evidence).
• Adjust posture and pacing — for example, change position often, avoid sitting for long unbroken stretches, and take care with bending and heavy lifting while the pain is active.

Exercise and physiotherapy

Exercise is a mainstay of non-surgical treatment in the guidelines, particularly when back pain has lasted more than three months (chronic back pain). A Cochrane systematic review that pooled 249 trials found moderate-certainty evidence that exercise probably reduces chronic low back pain compared with no treatment, usual care or placebo, while its effect on day-to-day function was small.

NICE recommends choosing the type of exercise around each person's needs, preferences and capabilities. The options are broad: strengthening and movement exercises for the back, aerobic exercise, or mind–body approaches such as yoga or tai chi. No single programme suits everyone.

A physiotherapist can assess you, build an exercise programme, and teach safe ways to move. Hands-on treatment (manual therapy), such as joint mobilisation or massage, is something NICE suggests considering only as part of a treatment plan that includes exercise, not as a replacement for it.

Medicines: a support for symptom relief, not the whole treatment

Medicines can ease pain during a flare, but the ACP guideline recommends starting with non-drug approaches and using a medicine when patient and doctor feel one is needed. Points worth knowing:

• Non-steroidal anti-inflammatory drugs (NSAIDs) — both guidelines include them as an option for low back pain. NICE advises the lowest effective dose for as short a time as necessary, taking into account each person's risks to the stomach, liver, kidneys and heart, including age. For sciatica, NICE notes that the evidence of benefit is limited, so it has to be weighed against the risks.
• Muscle relaxants — the ACP guideline lists them as another option for acute low back pain, if a medicine is wanted.
• Opioid painkillers — for chronic back pain, the ACP guideline reserves them for when other treatments have not worked and the benefits outweigh the risks for that person; NICE advises against them for chronic low back pain and chronic sciatica.
• Some other medicines for sciatica — gabapentinoids and other anti-epileptic medicines, oral steroids, and benzodiazepines. The current NICE guideline advises against them for sciatica, because overall there is no evidence of benefit and there is evidence of harm.

Please note: if you are already taking a medicine, do not stop or change it on your own; talk to your doctor or pharmacist first. Taking anti-inflammatory medicines bought over the counter for long periods without medical advice is not recommended.

Epidural injections: helpful for some, and usually short-term

An epidural injection of a steroid with a local anaesthetic (epidural steroid injection) is one option for sciatica. NICE suggests considering it for people with acute and severe sciatica. For back pain without leg pain, NICE advises against spinal injections.

To be candid about what to expect: a Cochrane systematic review of 25 trials found that epidural steroid injections probably reduce leg pain and disability only slightly, and in the short term, compared with a placebo injection, an effect that may be too small for many patients to notice clearly. An injection is therefore a support during a severe phase for some patients, not a treatment that suits everyone, and like any procedure it carries risks that your doctor will explain before you decide.

When waiting is reasonable — and when it is not

"Waiting" here does not mean doing nothing. It means continuing non-surgical treatment while watching whether the symptoms are improving, stable, or getting worse.

Waiting is a reasonable choice when:

• there are none of the warning signs listed below;
• the symptoms are gradually improving, or stable and manageable;
• there is no muscle weakness, or any weakness is not getting worse.

Do not wait, and see a doctor promptly, if you have:

• Progressively worsening leg weakness — for example, inability to lift the front of the foot, tripping, or the leg giving way.
• Numbness around the buttock and genital area (saddle anesthesia).
• Loss of bladder or bowel control — incontinence, or unusual difficulty passing urine.
• Pain so severe that ordinary painkillers cannot relieve it, especially severe pain at night.
• Fever together with back pain, or a history of cancer.
• Back pain after an injury, such as a fall or a blow.

The NICE guideline asks doctors to think about specific causes of back pain, such as cancer, infection or injury, particularly when new or changed symptoms appear. That is why non-surgical treatment should include follow-up and reassessment from time to time, rather than simply continuing without review.

There are also a few spine conditions for which waiting and seeing is generally not appropriate: spinal-cord compression in the neck (clumsy hands, poor balance, an unsteady walk) and spinal infection. I explain the reasons in each of those articles.

If appropriate non-surgical treatment has not helped

An MRI is not needed for everyone at the start. NICE advises against routine imaging in first-line care, and suggests considering it when the result is likely to change the treatment plan, for example when surgery is being considered or a serious condition is suspected. The reasons for an MRI are explained here → Why Do I Need an MRI? Is a Standard X-Ray Not Enough?

NICE suggests considering surgery to relieve pressure on the nerve (decompression) for sciatica when non-surgical treatment has not improved pain or function and the imaging findings match the symptoms. There is no fixed number of weeks that applies to everyone. The right time depends on how severe the symptoms are, which way they are heading, and each person's examination findings.

Even when surgery is being considered, the decision still belongs to the patient together with the doctor, and continuing non-surgical treatment remains an option: in the trial above, most people in the non-surgical group did not have surgery during the one-year follow-up. For details of who each operation is and is not suitable for, and its risks, see the procedure pages.

The point to understand: the evidence has limits, and treatment is individual

I want to be honest that, on current evidence, many non-surgical treatments help to a small to moderate degree, and the quality of the evidence on many questions is still moderate or low. No single treatment works for everyone. In the guidelines, treatment is therefore usually a combination: self-care together with exercise, with medicines or an injection as a support at certain stages.

An appropriate decision therefore comes from a consultation with a doctor who has examined you and reviewed your results together, not from reading a single article (this one included). This article is only a starting point to help you understand the options and ask your doctor better questions.

FAQ

Q: How long should I try non-surgical treatment for back pain or sciatica before surgery is considered?

A: There is no single number that applies to everyone. NICE suggests considering surgery when non-surgical treatment has not improved pain or function and the imaging findings match the symptoms, so the timing depends on how severe the symptoms are and which way they are heading. The exception is any red-flag sign, which should not wait.

Q: With back pain, should I rest in bed or keep moving?

A: Current guidance supports carrying on with normal activities as far as you can, rather than long periods of bed rest, and building up gradually as your body allows. For chronic back pain, regular exercise guided by your doctor or a physiotherapist has evidence that it probably reduces pain.

Q: Can I keep taking anti-inflammatory medicine I buy myself?

A: Taking it on your own for long periods is not recommended. NSAIDs should be used at the lowest effective dose for as short a time as necessary, because they carry risks to the stomach, liver, kidneys and heart that vary with age and each person's risk factors. Check with a doctor or pharmacist before using them.

Q: Do epidural injections help?

A: They may reduce leg pain slightly, in the short term, for some patients. NICE suggests considering them for acute and severe sciatica, but advises against spinal injections for back pain without leg pain. The decision should be made individually, together with your doctor.

Q: Do I need an MRI before starting non-surgical treatment?

A: Usually not for everyone. NICE advises against routine imaging in first-line care, and suggests considering it when the result is likely to change the treatment plan, for example when surgery is being considered or a serious condition is suspected (see the article "Why Do I Need an MRI?").

Every patient's situation differs in its details. This information helps with the overall picture, but decisions should be individualized together with a doctor.