How long should I try conservative treatments before considering shockwave therapy?

Most clinical guidelines recommend at least six months of conservative treatment -- including rest, stretching, orthotics, and physical therapy -- before pursuing extracorporeal shockwave therapy. If you've tried multiple approaches without meaningful improvement, discuss ESWT with your provider.

Can shockwave therapy work if cortisone injections have already failed?

Yes. Research suggests ESWT works through a different mechanism than cortisone. While cortisone suppresses inflammation, ESWT stimulates a biological healing response in the damaged tissue. Many patients who respond poorly to injections still experience improvement with shockwave therapy.

Is my plantar fasciitis actually something else if it won't go away?

Possibly. Conditions like calcaneal stress fractures, nerve entrapment (Baxter's neuritis), and fat pad atrophy can mimic plantar fasciitis. If you haven't had imaging or your symptoms don't follow the classic pattern, ask your provider about advanced imaging to rule out other diagnoses.

Plantar Fasciitis Not Responding to Treatment?

You’ve done everything right. Rest, ice, stretching, orthotics, maybe even a cortisone injection or two. Your physical therapist gave you a home exercise program you followed religiously. And yet every morning, that first step out of bed still feels like a nail driving into your heel.

If your plantar fasciitis isn’t responding to months of treatment, you’re not alone – and you’re not out of options. Extracorporeal shockwave therapy (ESWT) is an evidence-backed, non-invasive treatment that sits between conservative care and surgery on the clinical ladder. Here’s what you need to know.

Why Some Cases of Plantar Fasciitis Become Chronic

Most plantar fasciitis resolves within 6 to 12 months with standard treatment. But for roughly 10-20% of patients, the condition becomes chronic and resistant to conventional approaches.

The reason often comes down to biology. In the early stages, plantar fasciitis involves acute inflammation – swelling and irritation of the plantar fascia where it attaches to the heel bone. Standard anti-inflammatory treatments like ice, NSAIDs, and cortisone target this inflammation effectively.

But when the condition lingers for months, the tissue undergoes a shift. The problem is no longer inflammation – it’s degeneration. The collagen fibers in the fascia break down, blood supply diminishes, and the tissue loses its ability to repair itself through normal healing. This degenerative process, sometimes called plantar fasciosis, explains why anti-inflammatory treatments stop working. You’re treating a problem that no longer exists while the actual problem – tissue degeneration – goes unaddressed.

The Treatment Ladder: Where ESWT Fits

There’s a generally accepted escalation path for plantar fasciitis, and understanding where you are on it helps frame the ESWT decision:

Rest, ice, activity modification – the starting point
Stretching and night splints – targeting the calf and plantar fascia
Orthotics and supportive footwear – redistributing mechanical load
Physical therapy – strengthening, manual therapy, gait training
Cortisone injections – short-term pain relief (limited to 2-3 injections)
Extracorporeal shockwave therapy (ESWT) – stimulating tissue repair
Surgical release – partial fasciotomy as a last resort

ESWT occupies a critical position: it’s the last major non-invasive option before surgery. For patients who have exhausted steps 1-5, it represents a chance to avoid the operating room while still pursuing an active treatment rather than simply waiting.

What the Evidence Says About ESWT for Stubborn Plantar Fasciitis

The research supporting ESWT for recalcitrant plantar fasciitis – the kind that hasn’t responded to conservative care – is among the strongest in the shockwave therapy literature.

A landmark randomized controlled trial by Gerdesmeyer et al. (2008, American Journal of Sports Medicine) found that patients receiving ESWT experienced significantly greater pain reduction compared to a placebo group at 12 weeks, with benefits persisting at 12 months. Importantly, all participants in this study had failed at least three conservative treatments before enrollment.

Rompe et al. (2010, Journal of Bone and Joint Surgery) compared ESWT to a corticosteroid injection in patients with chronic plantar fasciitis. At 12 months, the ESWT group showed superior outcomes, suggesting that while cortisone provides faster short-term relief, ESWT may deliver more durable results in chronic cases.

These findings align with the broader clinical consensus: ESWT appears most effective precisely in the population where other treatments have failed. The treatment works by delivering acoustic pressure waves to the damaged tissue, stimulating neovascularization (the growth of new blood vessels) and triggering the body’s repair processes in tissue that has stalled in a degenerative cycle.

Red Flags: When Your Heel Pain Might Not Be Plantar Fasciitis

Before pursuing ESWT – or any additional treatment – it’s worth confirming the diagnosis. Several conditions mimic plantar fasciitis, and ESWT won’t help if the underlying problem is something else:

Calcaneal stress fracture – pain that worsens throughout the day rather than improving as you walk, especially in runners or those who recently increased activity
Baxter’s nerve entrapment – burning or tingling along with heel pain, often with numbness on the outside of the heel
Fat pad atrophy – deep, bruise-like pain centered under the heel rather than at the medial attachment point, more common in older adults
Tarsal tunnel syndrome – shooting or radiating pain that extends beyond the heel

If your pain pattern doesn’t match the classic “worst with first steps, improves with activity, returns after rest” profile of plantar fasciitis, ask your provider about advanced imaging such as an MRI or diagnostic ultrasound.

Making the Decision: Is ESWT Right for You Now?

Consider ESWT if you meet these general criteria:

Duration: Your symptoms have persisted for six months or longer
Failed treatments: You’ve genuinely tried at least two to three conservative approaches
Diagnosis confirmed: Imaging or clinical examination supports plantar fasciitis as the primary diagnosis
Surgical avoidance: You want to explore non-invasive options before considering fasciotomy

Understanding the costs involved with shockwave therapy matters too. Most insurance plans do not cover ESWT for plantar fasciitis, so you’re likely looking at an out-of-pocket investment of $300-$1,500 for a full treatment course of 3-5 sessions.

ESWT is typically offered through podiatrists, sports medicine physicians, and physical therapists.

The Bottom Line

Chronic plantar fasciitis that hasn’t responded to months of conservative care is a different condition than the acute heel pain you started with – and it needs a different treatment approach. Research suggests that ESWT can restart the healing process in degenerated tissue where rest, injections, and orthotics have failed. If you’ve exhausted the conventional treatment ladder and want to avoid surgery, shockwave therapy is worth discussing with a qualified provider.

Read our guide to plantar fasciitis to learn more about whether ESWT is appropriate for your situation.

References

Gerdesmeyer L, Frey C, Vester J, et al. Radial extracorporeal shock wave therapy is safe and effective in the treatment of chronic recalcitrant plantar fasciitis. Am J Sports Med. 2008;36(11):2100-2109. PubMed
Rompe JD, Cacchio A, Weil L Jr, et al. Plantar fascia-specific stretching versus radial shock-wave therapy as initial treatment of plantar fasciopathy. J Bone Joint Surg Am. 2010;92(15):2514-2522. PubMed