Plantar Fasciitis & Heel Pain Treatment

Plantar fasciitis can drag on for months if the underlying load and biomechanics aren't addressed. Rather than reaching straight for an injection, I confirm the diagnosis with ultrasound, rule out the conditions that mimic it, and work through the treatments that genuinely have evidence behind them, with a precisely-placed injection available when it's appropriate.

What is plantar fasciitis?

Plantar fasciitis is the most common clinical explanation for pain at the plantar-medial heel (the inner part of the heel). Typical features are:

• Pain during the first steps after waking or resting
• Tenderness near the medial calcaneal tubercle (the inner heel bone)
• Pain after prolonged standing, walking or running
• Temporary improvement as the foot "warms up"

Despite the name, chronic plantar fasciitis is not necessarily an inflammatory disorder. Under the microscope and on imaging it more often shows collagen disorganisation, microtearing, fibroblast proliferation and degenerative change, which is why "plantar fasciopathy" is often a more accurate term for long-standing cases. That distinction matters, because it shapes treatment: this is a load-and-repair problem, not simply inflammation to be switched off.

How I diagnose it

Diagnosis is normally clinical, your history and a focused examination tell me most of what I need. I use diagnostic ultrasound to confirm plantar fascia thickening and degeneration; imaging is most useful when symptoms are atypical, severe or not responding to treatment.

Just as important is excluding the conditions that mimic heel pain. In line with the 2023 JOSPT clinical guideline, I specifically consider:

• Calcaneal stress fracture
• Heel-fat-pad syndrome
• Nerve entrapment
• Lumbar radiculopathy (referred from the back)
• Inflammatory arthritis
• Insertional Achilles disease

Causes & contributing factors

Plantar fasciitis is best understood as a multifactorial, load-related disorder, usually a mismatch between the load going through the fascia and its capacity to tolerate and repair that load, rather than one single anatomical fault.

1. Repetitive mechanical loading, the main driver

Repeated tensile stress near the heel insertion can produce microdamage and unsuccessful remodelling. Common triggers:

• Sudden increases in running, jumping or walking
• Prolonged occupational standing
• Changes in training surface or footwear
• Rapid return to activity after a break
• Inadequate recovery between loading sessions

2. Higher body mass

Overweight and obesity are consistently associated with plantar heel pain, especially in non-athletes, higher body mass increases the load through the fascia when standing and walking. I treat weight as one component of load management, not a stand-alone cause.

3. Limited ankle dorsiflexion & calf tightness

Reduced ankle movement, often from calf (gastrocnemius–soleus) tightness, can increase compensatory foot pronation and fascial tension, the rationale for calf stretching and mobilisation. It's a contributor rather than a universal cause.

4. Foot mechanics & muscle function

Flat feet, high arches and pronation have all been proposed, but the evidence is inconsistent, plenty of people with these foot shapes have no pain. Reduced strength in the calf and intrinsic foot muscles can lower load tolerance, which is why progressive strengthening makes sense.

5. Age & tissue capacity

It's common in middle age, as collagen, elasticity and recovery change, but also occurs in younger runners when training demand rises faster than tissue can adapt.

Treatment: what the evidence supports

Plantar fasciitis is best treated in a stepped way, not with a single "fix." Here's the honest, evidence-based picture.

Education & load management Foundation

Education and individualised load management are the foundation of care (the 2021 best-practice guide identifies education, load management, plantar-fascia stretching and taping as the core initial approach). Complete rest is usually unnecessary; painful loading is temporarily reduced and rebuilt:

• Temporarily reduce running, jumping or prolonged standing
• Swap some impact exercise for cycling or swimming
• Avoid barefoot walking on hard surfaces during flares
• Gradually rebuild activity as symptoms improve
• Use pain during activity and next-morning pain to judge how much load to add

Stretching Modest benefit

Plantar-fascia-specific stretching (dorsiflexing the toes to tension the fascia, particularly before the first morning steps) and calf stretching give modest, low-risk improvements, best as part of a combined programme rather than an isolated cure.

Progressive strengthening Recommended

Progressive resistance for the calf, plantar flexors and intrinsic foot muscles improves load tolerance, for example, heel raises performed with the toes extended. No single programme is proven best, so I progress it to your symptoms.

Taping Short-term

Low-Dye or similar taping can give short-term pain relief, and can help predict whether an orthosis will help, useful while exercise and load-management take effect.

Foot orthoses Variable

Orthoses give modest, variable relief; a BJSM meta-analysis found insufficient evidence of consistent benefit over sham. So: prefabricated devices are a reasonable first try, custom devices aren't proven superior, and comfort matters more than "correcting" a presumed abnormal foot posture. Best used as an adjunct if the core programme hasn't done enough.

Night splints Selected patients

A one- to three-month night-splint trial can help if severe first-step morning pain is your main problem (supported by the 2023 guideline), though comfort and sleep disturbance limit some people.

Manual therapy Adjunct

Joint and soft-tissue mobilisation can improve short-term pain and mobility, particularly when ankle or foot movement is restricted, supporting active rehabilitation rather than replacing it.

Extracorporeal shock-wave therapy (ESWT) Good evidence

ESWT has some of the strongest evidence among second-line treatments for persistent plantar fasciitis, improving pain and function. It's generally safe, a systematic review of 2,493 treated patients found predominantly temporary effects (treatment pain, redness, bruising, swelling). The best-practice guide suggests considering it when around four weeks of well-followed core treatment hasn't produced adequate improvement.

Ultrasound-guided corticosteroid injection Short-term relief

A corticosteroid injection may reduce pain in the short term, but sustained benefit is uncertain, and it doesn't address the underlying load-capacity problem, so it shouldn't replace rehabilitation. When an injection is used, ultrasound guidance helps place it accurately around the painful heel attachment, and studies suggest guided injections can improve outcomes compared with blind ones. Potential complications include plantar-fascia rupture, heel-fat-pad atrophy, infection, skin depigmentation, a post-injection pain flare, and nerve or soft-tissue injury, so repeated injections warrant caution.

Where an injection is the right choice, doing it under ultrasound is what makes it safer and more accurate, I can place the medication precisely and protect the heel fat pad, which blind injections can damage. I won't inject an acute plantar fascia tear.

PRP & other injections Limited evidence

Platelet-rich plasma may offer longer-term benefit than corticosteroid in some studies, but findings are affected by varied preparation methods and small trials. Botulinum toxin (Botox) is worth considering in selected chronic cases where a tight calf is driving symptoms: an ultrasound-guided injection into the medial gastrocnemius aims to reduce calf tension and, in turn, the strain on the plantar fascia. Early results are promising, but it isn't routine first-line care. Evidence for prolotherapy, dextrose and autologous blood remains limited, and I wouldn't use these before a structured conservative programme and ESWT.

Medication & passive modalities Symptom control only

Simple painkillers or short NSAID courses can control symptoms but are unlikely to change the underlying disorder (and carry their own risks). Therapeutic ultrasound isn't recommended as an add-on to stretching; evidence for laser, dry needling, acupuncture and massage is mixed, none should displace education, stretching and progressive loading.

Surgery Last resort

Surgery is reserved for severe, persistent disability after an extended, well-supervised non-operative programme, often six to twelve months or longer. Options include partial plantar-fascia release and, in selected patients with substantial calf contracture, gastrocnemius recession. Evidence is largely observational and complications are real, so it remains a final option.

My recommended treatment pathway

A sensible, evidence-based sequence:

1. Confirm the clinical diagnosis and exclude alternative causes (ultrasound helps here).
2. Begin education, activity modification, supportive footwear, plantar-fascia and calf stretching, taping and progressive strengthening.
3. Add manual therapy when clinically relevant; consider a night splint for persistent first-step pain.
4. Use an orthosis as an adjunct if short-term offloading helps.
5. Consider ESWT for persistent symptoms despite a well-followed rehabilitation programme.
6. Consider an injection only after discussing its uncertain durability, cost and adverse effects.
7. Reserve surgical assessment for prolonged, disabling, treatment-resistant cases.

What to expect at your appointment

Your first step is an initial consultation to discuss your symptoms and history. If appropriate, your in-person visit includes a diagnostic ultrasound assessment, an ultrasound-guided injection where indicated, and post-treatment guidance with a rehabilitation plan. Booking is quick via the Book an appointment page.

Cost of treatment

An ultrasound-guided injection treatment for plantar fasciitis starts from £320, which includes the initial consultation, diagnostic ultrasound, the injection, a written report and care plan, and an exercise prescription where appropriate. See the full price list for all treatments.

Frequently asked questions

References