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Most people looking for sciatica relief on the Costa Blanca are making at least two of these mistakes — and the hardest part is that several of them feel like exactly the right thing to do.

5 mistakes making sciatica worse — woman holding lower back NordicFysio Costa Blanca physio

Sciatica is unforgiving. Unlike general back pain that eases with rest, sciatic nerve pain can flare up from seemingly innocent things — the way you sit, the shoes you wear, how you get out of bed in the morning. And the frustrating part? Most people who are suffering with sciatica are unknowingly doing several things every day that are keeping it from healing.

This is not about blame. These habits are understandable — some even feel like they should help. But understanding them is often the turning point between endless flare-ups and genuine recovery. Here are the five most common things that make sciatica worse.

1. Sitting for Long Periods (Especially in Soft Chairs or Sofas)

Sitting is one of the most compressive positions for the lumbar spine and sciatic nerve. When you sit — particularly in a soft sofa that lets your pelvis tilt back — the lower lumbar discs are under significantly more pressure than when you stand or walk. For someone with a herniated disc or piriformis irritation, prolonged sitting can aggravate the nerve steadily, even when you feel comfortable in the moment.

The solution is not to avoid sitting entirely — it is to break it up. Standing for two to three minutes every 30–40 minutes makes a measurable difference. A firmer chair with good lumbar support is almost always better than a soft sofa for someone with active sciatica.

2. Stretching the Wrong Way

One of the most common pieces of advice given to sciatica sufferers is to stretch. And while targeted stretching can be helpful, the wrong stretches can significantly irritate an already inflamed sciatic nerve. In particular:

  • Straight-leg raises and toe-touch stretches put the nerve under direct tension — painful and counterproductive during a flare
  • Aggressive piriformis stretches done when the muscle is in spasm can increase compression rather than relieve it
  • Twisting stretches can increase disc pressure and worsen a herniation

If you are unsure which stretches are safe for your specific cause of sciatica, this is exactly the kind of guidance that comes from a proper assessment — not generic advice. Our post on why sciatica keeps coming back explains how getting the right diagnosis changes everything.

3. Stopping Activity Completely

It is natural to rest when you are in pain. But complete inactivity is one of the worst things for sciatica beyond the first few days of an acute episode. Without movement, the muscles that support and protect the spine weaken quickly. Circulation to the affected area reduces. And the nervous system becomes more sensitised to pain — a phenomenon called central sensitisation — which makes the pain feel more intense even without more structural damage.

Gentle walking is usually one of the best things you can do for sciatica. It keeps the spine mobile, maintains circulation around the nerve, and prevents the muscular deconditioning that prolongs recovery. The key is pacing — short, regular walks rather than infrequent long ones.

For those seeking lasting sciatica relief on the Costa Blanca, avoiding these first three mistakes alone is often enough to stop the cycle of flare-ups and partial recovery.

4. Sleeping on a Mattress That Is Too Soft (or Too Firm)

Sleep is when your body recovers — or fails to. A mattress that does not support your spine in a neutral position means eight hours of accumulated stress on the structures that are already irritating your sciatic nerve. A mattress that is too soft allows the hips to sink, creating a lateral curve in the lumbar spine. One that is too firm provides no pressure relief for the hips and shoulders.

Sleep position matters too. We cover this in detail in our article on the best sleeping positions for back pain and sciatica — including the one position that almost every sciatica patient should avoid.

5. Waiting Too Long to Get a Proper Assessment

This is perhaps the most costly mistake. Many people manage sciatica with painkillers, internet advice, and the hope that it will resolve on its own. Sometimes it does. But when sciatica is caused by a structural problem — a disc herniation, spinal stenosis, piriformis syndrome — waiting allows the underlying condition to become more established, the nerve more sensitised, and recovery significantly harder.

Early intervention is consistently associated with better outcomes and shorter recovery times. If your sciatica has lasted more than six weeks, or if it keeps returning despite previous treatment, it is time to find out exactly what is causing it — not just manage the pain.

For reference, the NHS sciatica guidance provides useful information on this condition and when to seek help.

Finding Real Sciatica Relief on the Costa Blanca

If any of these habits sound familiar, do not be discouraged. Awareness is the first step — and with the right support, sciatica is very treatable even when it has been going on for a long time.

Our English and Swedish-speaking physiotherapy team at NordicFysio specialises in nerve pain and sciatica. We offer a free initial consultation at both our clinics on the Costa Blanca:

  • Punta Prima — +34 966 941 715
  • Ciudad Quesada — +34 623 204 610

Book your free assessment today — and let us help you identify what is keeping your sciatica from healing, and build a plan that actually works.