Laser Therapy for Pain: How It Works and When It Helps

If you've been battling a stubborn injury or pain that simply won't settle, you may have come across laser therapy as a treatment option. It sounds high-tech, and understandably many people aren't sure what it involves or whether it truly works. At Peak Movement in Cape Town, low-level laser therapy is one of the tools we use to support healing and ease pain, but it works best when you understand what it can and can't do. Here's a clear, honest look at how it fits into modern physiotherapy.

What is low-level laser therapy?

Low-level laser therapy (LLLT), sometimes called photobiomodulation or 'cold laser', uses specific wavelengths of light to stimulate activity in your body's cells. Unlike the high-powered lasers used in surgery, these devices don't cut or burn tissue and produce little to no heat. Instead, the light energy is absorbed by your cells, where it is thought to encourage the natural processes involved in repair and recovery. It's a non-invasive, drug-free treatment, which is part of why it appeals to people who would rather avoid medication where they can.

How does laser therapy actually reduce pain?

The science centres on your cells' energy factories, the mitochondria. Research suggests that when tissue absorbs certain wavelengths of light, mitochondria can produce more energy, which may support cell repair, help settle inflammation, and improve local blood flow. For you, that can translate into less pain and swelling and a more comfortable path through rehabilitation. It's worth being realistic: laser therapy is not a magic switch, and the evidence is stronger for some conditions than others. That's why we use it as one part of a wider treatment plan rather than a stand-alone cure.

Which conditions respond well to laser therapy?

Laser therapy is most commonly used for soft-tissue injuries and pain linked to inflammation. That includes tendon problems such as tennis elbow and Achilles tendinopathy, muscle strains, joint pain from conditions like osteoarthritis, and slow-healing niggles that haven't responded to rest alone. It can also help in the early, painful stages of an injury, when getting inflammation under control makes it easier to begin the movement and loading work that ultimately drives recovery. During your assessment we'll be honest about whether laser is likely to add value for your particular problem.

What does a laser therapy session feel like?

A session is straightforward and comfortable. You'll sit or lie down while a small handheld device is held against or just above the skin over the affected area. Most people feel very little, perhaps a gentle warmth, but often nothing at all. Each area usually takes only a few minutes, and there's no downtime afterwards, so you can carry on with your day. Laser is typically combined with hands-on treatment and a tailored exercise programme in the same visit, so you're addressing both the symptoms and the underlying cause.

How laser therapy fits into your recovery

On its own, laser therapy can take the edge off pain, but lasting results come from what you do alongside it. Its real value is that, by calming pain and inflammation, it can create a window in which you're able to move, strengthen, and rebuild the tissue properly. Think of it as a support that helps you reach the active part of rehab sooner, not a replacement for it. Your physiotherapist will track how you respond and adjust the plan, including how many sessions are worthwhile, based on real progress rather than a fixed formula.

Frequently asked questions

Does laser therapy hurt?

No. Low-level laser therapy is comfortable for most people. You might notice a mild warmth over the treated area, but the majority feel nothing during the session and can return to normal activity straight away.

How many laser therapy sessions will I need?

It varies with the condition and how long you've had it. Some people notice a difference within a few sessions, while more stubborn or chronic problems may need a longer course. Your physiotherapist will review your response as you go and only continue while it is genuinely helping.

Is laser therapy safe?

For most people it is very safe and well tolerated. There are a few situations where we take extra care or avoid it, such as over cancerous areas, during pregnancy over the abdomen, or directly over the eyes, which is why a proper assessment comes first. Protective eyewear is used during treatment as a precaution.

Book with Zoe

If ongoing pain or a slow-healing injury is holding you back, Zoe Bredenkamp at Peak Movement in Cape Town can assess whether laser therapy, alongside hands-on physiotherapy and targeted exercise, is right for you. Book an appointment today and take the first step towards moving comfortably again.