
If you’ve been dealing with heel pain, arch pain, or a stubborn case of plantar fasciitis, you’ve probably heard about two very different injection options: cortisone shots and PRP (platelet-rich plasma) therapy. For most people with chronic or recurring foot pain, PRP tends to offer better long-term results because it helps the tissue actually heal, while cortisone works faster but only masks the pain for a while.
The right choice really depends on your specific condition, how long you’ve been hurting, and what you’re hoping to get out of treatment. Here’s what you need to know before your next appointment.
Foot pain has a way of taking over your life. It changes how you walk, what shoes you can wear, whether you can play with your kids or get through a workday without wincing. By the time most people come into our office, they’ve already tried rest, stretching, new shoes, maybe even a night splint. They’re not looking for another home remedy. They want something that actually works.
That’s where things get confusing. Cortisone injections have been around for decades, and your doctor can offer them the same day. PRP is newer, uses your own blood, and sounds a little more involved. Naturally, people want to know which one is the smarter investment of their time, money, and hope.
Cortisone is a corticosteroid, a strong anti-inflammatory medication injected directly into the painful area. It works by quickly calming inflammation, often within a few days.
Here’s what to expect with cortisone:
Relief often shows up within 3 to 7 days
The effect typically lasts anywhere from a few weeks to a few months
It doesn’t repair damaged tissue; it just quiets inflammation
Repeated injections in the same spot can weaken tendons and ligaments over time
It’s a good short-term option before an event, trip, or while other treatments take effect
Cortisone has its place. If you have a big wedding coming up or need to get through a busy season at work, a cortisone shot can buy you real relief. The tradeoff is that it doesn’t address why the tissue is inflamed in the first place, so the pain frequently returns once the medication wears off.
PRP therapy takes a small sample of your own blood, spins it in a centrifuge to concentrate the platelets, and injects that platelet-rich plasma into the injured area. Platelets are packed with growth factors that signal your body to repair damaged tissue.
Instead of suppressing inflammation, PRP works with your body’s natural healing response. That’s a meaningful difference for conditions like chronic plantar fasciitis, Achilles tendinitis, or ligament damage, where the underlying tissue is genuinely worn down or torn on a microscopic level.
A few things patients often notice about PRP:
Results build gradually over several weeks, not days
Because it’s made from your own blood, allergic reaction risk is very low
It targets tissue repair, not just pain suppression
Many patients need just one to three sessions, spaced weeks apart
The tradeoff with PRP is patience. You won’t feel dramatically better the next morning. Most patients start noticing real improvement around the three- to six-week mark, with continued gains for a few months after that as the tissue rebuilds.
It’s less about one treatment being universally superior and more about matching the treatment to the problem.
Cortisone tends to make sense when:
Pain is new or relatively short-term
You need fast relief for a specific event or deadline
Inflammation, not tissue damage, is the main issue
You haven’t already had multiple cortisone shots in the same area
PRP tends to make sense when:
Pain has been going on for months, or keeps coming back
Previous cortisone shots gave you relief that didn’t last
Imaging shows tendon degeneration or a partial tear
You want a treatment that supports long-term tissue health, not just symptom control
You’re hoping to avoid surgery
A lot of our patients at Elite Foot & Ankle Associates have already tried a round or two of cortisone by the time they come in. It helped for a bit, but then the pain crept back. That pattern is actually one of the clearest signs that PRP might be worth exploring, since it suggests the tissue needs to heal rather than just calm down.
Studies comparing PRP and cortisone for chronic plantar fasciitis have generally found that while cortisone provides quicker short-term relief, PRP tends to produce more durable improvement over six months to a year. For Achilles tendon issues, the research leans even more heavily toward PRP, since repeated steroid injections near the Achilles carry a real risk of tendon rupture. That risk alone is enough reason for many podiatrists to steer away from cortisone in that specific area.
None of this means cortisone is a bad option. It simply means the two treatments are built for different jobs, and using the wrong one for your particular situation can leave you frustrated and back where you started.
The honest truth is that neither treatment is a one-size-fits-all answer. The right choice depends on how long you’ve been in pain, what’s actually happening in the tissue, and what you’ve already tried. That’s why a proper evaluation matters more than the injection itself.
At Elite Foot & Ankle Associates, our podiatrists use diagnostic imaging and a hands-on exam to determine exactly what’s causing your pain before recommending a path forward. For many patients, that means exploring our regenerative medicine treatments, including PRP, as part of a broader plan to restore healthy tissue rather than just quiet the pain for a few weeks. We often pair these injections with other tools like shockwave therapy to speed healing and improve outcomes, especially for chronic heel pain and plantar fasciitis that hasn’t responded to conservative care.
If you’re tired of pain that keeps circling back no matter what you try, it’s worth having a real conversation about which treatment actually fits your foot. You can reach out to schedule an evaluation at one of our six Portland-area locations. Lasting relief is possible, and figuring out the right path starts with an accurate diagnosis, not a guess.

About the Author
Daniel McManus, DPM
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September 15, 2026