Cortisone Injections for Foot and Ankle Pain: What to Expect

Quick answer: Cortisone Injection Foot Ankle affects roughly 1 in 4 adults in our practice. Effective treatment starts with a targeted diagnosis, conservative-first treatment, and escalation only when needed. We treat this regularly at our Howell and Bloomfield Township practices. Call (810) 206-1402.

Related Conditions

✅ Medically reviewed by Dr. Tom Biernacki, DPM — Board-certified podiatrist specializing in foot & ankle surgery. View credentials.

How Cortisone Injections Work

Cortisone injections—more accurately called corticosteroid injections—deliver a powerful anti-inflammatory medication (typically triamcinolone acetonide, methylprednisolone, or betamethasone) directly to an inflamed or painful area of the foot or ankle. Corticosteroids suppress the inflammatory cascade by inhibiting prostaglandin synthesis, reducing capillary permeability, and decreasing inflammatory cell activity. This reduces pain, swelling, and inflammation at the injection site—providing symptomatic relief that allows the healing process to occur without the ongoing inflammatory burden impeding it.

The injection typically combines the corticosteroid with a local anesthetic (lidocaine or bupivacaine) that provides immediate pain relief lasting 2–12 hours. The steroid component takes 24–72 hours to reach full effect. Most patients notice significant improvement within 3–7 days of the injection. The duration of benefit varies by condition and individual—some patients experience relief for weeks to months, while others have shorter-lasting effects.

Conditions Commonly Treated with Cortisone Injections

Plantar Fasciitis

Corticosteroid injection into the plantar fascia origin at the medial calcaneal tubercle is one of the most common procedures in podiatry. Clinical trials show good short-term pain relief (at 1–4 weeks) in approximately 70–80% of patients, with benefit typically lasting 4–8 weeks. The injection is most appropriate when conservative measures (stretching, orthotics, night splints) are in place but pain remains severe enough to limit function. It is not a standalone treatment—the underlying mechanical cause (tight calf, poor arch support) must be addressed concurrently. Repeated injections into the same site carry increasing risk of plantar fascia rupture and fat pad atrophy—most podiatrists limit injections to 2–3 per site per year.

Morton’s Neuroma

Corticosteroid injection into the interdigital space affected by Morton’s neuroma provides good short-to-medium term relief—approximately 50–70% of patients respond to a series of 2–3 injections. Ultrasound-guided injection improves accuracy compared to blind injection. The injection reduces perineural inflammation, which is the primary pain generator in neuroma. For patients who respond inadequately or whose relief is short-lived after multiple injections, sclerosing (alcohol) injections or surgical neurectomy are considered.

Joint Injections (Ankle, Subtalar, MTP)

Intra-articular corticosteroid injections are used for ankle osteoarthritis, subtalar arthritis, 1st MTP joint arthritis (hallux rigidus), and inflammatory arthritis (rheumatoid, psoriatic, gout) affecting foot joints. Joint injections provide symptomatic relief while disease-modifying treatment is optimized, or as a temporizing measure before surgical intervention. Ultrasound or fluoroscopic guidance improves injection accuracy for small joint injections. Relief typically lasts weeks to months; repeated injections are limited by concerns about cartilage effects with frequent use.

Tendon Sheaths (NOT Into Tendons)

Corticosteroid injection around (peritendinous, not directly into) inflamed tendons—including the Achilles tendon sheath, peroneal tendon sheath, and posterior tibial tendon sheath—reduces tenosynovitis. Critically, injection directly into tendon substance (intra-tendinous) significantly increases rupture risk and should never be performed for weight-bearing tendons. Ultrasound guidance ensures the medication is placed accurately in the tendon sheath rather than the tendon itself.

What to Expect After the Injection

Local anesthetic provides immediate relief lasting 2–12 hours. After the anesthetic wears off, many patients experience a “cortisone flare”—increased pain for 24–48 hours before the steroid takes effect. Ice applied 15 minutes several times in the first 24 hours reduces flare severity. Avoid strenuous activity of the injected area for 48–72 hours to allow the steroid to settle and reduce flare risk. Resume normal activities as comfort allows after 48 hours. Significant bruising, increased redness or warmth beyond 72 hours, or fever may indicate infection and warrant prompt evaluation.

Frequently Asked Questions

Medical References & Sources

• PubMed Research — Corticosteroid Injection for Plantar Fasciitis
• PubMed Research — Injection for Morton’s Neuroma
• PubMed Research — Ankle Joint Injection Outcomes

Dr. Tom Biernacki, DPM is a board-certified podiatric surgeon at Balance Foot & Ankle in Howell and Bloomfield Township, Michigan. He performs ultrasound-guided and landmark-based corticosteroid injections for plantar fasciitis, Morton’s neuroma, joint arthritis, and tendon sheath inflammation as part of comprehensive foot and ankle care.

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your foot and ankle injuries, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Frequently Asked Questions

When should I see a podiatrist?

If symptoms persist past 2 weeks, affect your normal activity, or are accompanied by red-flag symptoms (warmth, redness, swelling, inability to bear weight).

What does treatment cost?

Most diagnostic visits and conservative treatments are covered by Medicare and major insurers. Out-of-pocket costs vary by your specific plan.

How quickly can I get an appointment?

Most non-urgent cases see us within 5 business days. Urgent cases (sudden pain, possible fracture) typically same or next business day.