PRP vs Cortisone Injections: Which Is Better for Joint Pain?

What’s the basic difference between PRP and cortisone?

Cortisone and PRP are often discussed in the same breath because both are injected into joints to treat pain — but biologically they could not be more different. Understanding that difference is the foundation for choosing between them.

Cortisone is a synthetic corticosteroid — a powerful anti-inflammatory medication. When injected into a joint or around an inflamed tendon, it suppresses the immune response that’s driving inflammation, swelling, and pain. The medication itself does nothing to repair damaged tissue. Its job is to quiet the inflammatory chemistry so that the joint feels better. Cortisone has been used in clinical practice since the 1950s and is one of the most widely prescribed treatments in joint injection medicine.

PRP is fundamentally different. It uses your own blood. A small sample is drawn from your arm, spun in a centrifuge to concentrate the platelets and growth factors, and then injected back into the injured joint or tendon under image guidance. Those concentrated growth factors signal your body’s natural healing cascade — recruiting reparative cells, modulating inflammation, and promoting tissue regeneration over weeks to months. Cleveland Clinic explains the science of platelet-rich plasma in detail, but the short version is: PRP triggers healing. For a deeper dive into how PRP therapy works for arthritic joints and injured tendons, see our patient guide.

The fundamental difference is this: cortisone treats the symptom (inflammation), while PRP treats the cause (damaged tissue). One quiets pain; the other tries to fix what’s broken. Both have their place — the question is which fits your situation.

How long does each one last?

Duration of relief is one of the biggest practical differences between the two injections, and it’s often what tips the decision for patients weighing cost against benefit.

Cortisone: Relief typically begins within 24–72 hours and peaks at one to two weeks. Most patients experience meaningful pain reduction for 6–12 weeks. Some patients get longer relief — occasionally several months — while others find that effects wear off in just a few weeks. The variability depends on the underlying condition, the joint involved, and how active the inflammation is.

PRP: Relief begins gradually. Most patients don’t notice meaningful improvement for 4–8 weeks, with continued gains over the following 3–6 months as the healing response runs its course. Once the benefit kicks in, however, it tends to last. Many patients enjoy 12+ months of meaningful pain reduction from a single PRP series, and some get multi-year relief, especially when combined with physical therapy and lifestyle changes.

The reason for this difference comes down to mechanism. Cortisone wears off as the steroid is metabolized and cleared from the joint — once the medication is gone, the underlying problem is still there. PRP’s effects last because the joint is actually healthier than it was before the injection. Tissue has been repaired, not just numbed.

The patient implication is straightforward. If you need to be at a wedding next weekend, on a beach next month, or working through a deadline tomorrow, cortisone makes sense — it works fast. If you have time and want lasting results, PRP makes sense, even though it requires patience.

What conditions does each work best for?

Both injections have well-defined sweet spots. Picking the right tool for the job matters more than picking the “better” one in the abstract.

Cortisone is typically best for:

• Acute inflammatory flare-ups — when pain is at its worst and you need fast relief
• Bursitis — especially acute trochanteric, subacromial, and olecranon bursitis
• Frozen shoulder during the acute capsulitis phase
• Carpal tunnel syndrome for short-term relief while planning longer-term treatment
• Trigger fingers — often resolved with one or two well-placed injections
• Acute tendinitis where inflammation, not tissue damage, is the primary issue
• Diagnostic injections — relief from cortisone confirms the joint is the actual pain source, which helps guide next steps

PRP is typically best for:

• Knee osteoarthritis — the most-treated condition with PRP at Dr. Qureshi’s Katy office, with strong randomized trial evidence supporting its use
• Partial rotator cuff tears — especially in patients who want to avoid surgery
• Chronic tendinopathy — tennis elbow, golfer’s elbow, Achilles tendinopathy, patellar tendinopathy
• Mild-to-moderate cartilage damage in the knee, hip, or shoulder
• Patients who want to delay or avoid joint replacement surgery
• Athletes who want to preserve long-term joint health and return to sport

For knee arthritis specifically, the case for PRP has been strengthened by NIH-supported research on osteoarthritis treatment, which has helped clarify which interventions actually change long-term outcomes versus simply mask symptoms. For more on Dr. Qureshi’s approach to knee arthritis, see the dedicated condition page.

What are the downsides of each?

No injection is risk-free. Both have real limitations and patients deserve to hear them.

Cortisone downsides:

• Repeated injections can damage cartilage over time. This is well-documented — multiple studies have shown cartilage thinning and accelerated osteoarthritis with frequent steroid exposure.
• Most guidelines limit cortisone to 3–4 injections per year per joint precisely because of cumulative cartilage risk.
• Can temporarily raise blood sugar — a real concern for diabetics, who may see glucose spikes for several days after an injection.
• Tendon weakening with repeated peritendinous use — rare cases of tendon rupture have been reported, particularly with the Achilles and patellar tendons.
• Doesn’t address the underlying problem. When cortisone wears off, the damaged tissue is still damaged.

PRP downsides:

• Slower onset — not for emergencies or short-term pain control
• Higher upfront cost — $750–$1,200 per site at Dr. Qureshi’s Katy office
• Not covered by insurance — most carriers consider PRP investigational despite growing evidence
• Results vary between patients — biology, age, severity, and adherence to post-procedure rehab all affect outcomes
• Mild post-injection soreness for several days as the inflammatory phase of healing kicks off

None of these are deal-breakers in the right context, but they’re honest tradeoffs to weigh before deciding.

How much does each cost?

Cost is often the deciding factor, especially for patients comparing these options for the first time.

Cortisone is typically covered by insurance, including Medicare and most commercial plans. Patient out-of-pocket cost is usually a copay — commonly $20–$50, depending on your plan. For most patients, cost is essentially a non-issue with cortisone.

PRP at Dr. Qureshi’s Katy office is offered as a self-pay treatment: $750 per site, or $1,200 for two sites bundled (for example, both knees treated in the same visit). PRP is not billed through insurance because most carriers consider it investigational and decline to cover it.

The sticker shock is real, but it’s worth framing the value. While PRP is much more expensive upfront, the longer duration of relief — 12+ months versus 6–12 weeks — means many patients spend less over the long term. Factor in repeated cortisone copays, lost productivity from recurrent flares, the cumulative cartilage cost of frequent steroid exposure, and the avoided expense of eventual surgery, and PRP often comes out ahead on a multi-year horizon. For patients with questions about coverage or self-pay options, the insurance page outlines what’s billable through the practice.

Can you do both?

Yes — and many patients do. The two injections are not mutually exclusive, and combining them strategically is often the best clinical approach.

A common sequence: a cortisone injection delivers fast relief during an acute flare, then PRP follows several weeks later for longer-term healing. This pattern is used regularly at Dr. Qureshi’s office for patients who can’t wait the 4–8 weeks PRP needs to start working but who also want the durable benefit PRP provides.

One important caveat: timing matters. If you’re doing both, typically wait 4–6 weeks between cortisone and PRP. Cortisone’s anti-inflammatory effect can interfere with PRP’s healing mechanism if the two are given too close together — PRP relies on a controlled inflammatory cascade to recruit healing cells, and active corticosteroid in the joint can blunt that signal.

Dr. Qureshi sequences treatments based on each patient’s specific situation: how acute the pain is, what the imaging shows, how the patient has responded to previous injections, and what their long-term goals are. There’s no single right order — the right plan depends on the case.

Who should NOT get cortisone?

Cortisone is generally safe but not for everyone. Patients in any of the following groups should discuss alternatives:

• Patients with poorly controlled diabetes — cortisone can raise blood sugar significantly for several days, which matters more in already-fragile glycemic control
• Patients with active infection in or near the target joint — cortisone suppresses immune response and can let infection worsen
• Patients with allergy to corticosteroids — rare, but documented
• Pregnancy — case-by-case, but generally avoided unless clearly necessary

Who should NOT get PRP?

Which is the right choice for you?

There’s no universal answer — but there is a useful framework. Use the criteria below to figure out which injection likely fits your situation. Then bring the answer to a consultation, where the plan can be tailored to your specific imaging, history, and goals.

• Acute pain that’s stopping you from functioning today → cortisone
• Chronic joint pain you’ve had for months → consider PRP
• Knee osteoarthritis where you want to preserve cartilage → PRP
• You’ve already had multiple cortisone shots and they’re losing effectiveness → consider PRP or another regenerative medicine option
• Cost is a significant factor → start with cortisone (insurance covered) and see how it works
• You’re an athlete trying to preserve long-term joint health → PRP
• You have a contraindication to one → use the other (or alternatives like hyaluronic acid, prolotherapy, or non-injection care)

The truth is that most patients don’t need to pick one forever. They need the right injection at the right moment in their treatment plan. That’s exactly what a consultation is for — to look at your specific case and figure out what makes sense now, what to revisit in three months, and what the long-term plan should look like. Schedule a consultation with Dr. Qureshi to evaluate which makes sense for your specific situation, or contact the Katy office to ask questions before booking.

Frequently Asked Questions

Can PRP and cortisone be used together?

Yes. Many patients receive a cortisone injection for acute relief, followed by PRP weeks later for long-term healing. Typically 4–6 weeks between treatments — too close together can interfere with PRP’s healing mechanism. Dr. Qureshi sequences treatments based on your specific situation.

Why is PRP not covered by insurance when cortisone is?

Most insurance carriers and Medicare classify PRP as “investigational,” meaning they don’t yet consider it standard of care despite growing research support. Cortisone has been used since the 1950s and has well-established CPT codes for insurance billing. PRP is offered as a self-pay treatment at $750 per site at Dr. Qureshi’s Katy office.

Does cortisone really damage cartilage?

Studies show repeated corticosteroid injections — especially more than 3–4 per year per joint — can accelerate cartilage breakdown over time. Single or occasional cortisone injections are generally safe. Patients receiving multiple injections per year may want to consider PRP or other alternatives to limit cumulative cortisone exposure.

How quickly will PRP work compared to cortisone?

Cortisone usually starts working within 24–72 hours and peaks at 1–2 weeks. PRP works more gradually as tissue heals — most patients notice meaningful improvement at 4–8 weeks, with continued improvement up to 3–6 months as the healing response continues.

Which is better for knee arthritis?

Multiple randomized clinical trials have shown that PRP produces greater pain reduction and better functional outcomes than cortisone or hyaluronic acid in patients with knee osteoarthritis at 6 and 12 months. Cortisone may still be useful for acute flare-ups, but for ongoing management of knee arthritis, PRP is often the better long-term choice.