Frozen Shoulder Treatments That Actually Work: A Complete Evidence-Based Guide

By Dr. Jeffrey Peng, MD · Published March 4, 2026 · 8 min read

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Frozen shoulder — clinically known as adhesive capsulitis — is one of the most frustrating conditions I treat in my sports medicine practice. Patients often arrive having received conflicting advice: some were told to wait it out, others to get surgery, and many were never informed about the full range of evidence-based options available today. In this comprehensive guide, I break down every major frozen shoulder treatment, from physical therapy and corticosteroid injections to newer interventions like platelet-rich plasma (PRP), extracorporeal shockwave therapy, and laser therapy — so you can make the most informed decision for your recovery.

What Are the Three Stages of Frozen Shoulder?

Understanding where you are in the progression of frozen shoulder is essential because the effectiveness of each treatment depends heavily on your current stage.

The freezing stage is the initial phase, lasting roughly six weeks to nine months. Inflammation within the shoulder joint capsule causes severe pain and progressively restricts motion. Thick scar tissue begins forming around the joint, and the intense discomfort discourages shoulder use — which can lead to further stiffness and muscle atrophy.

The frozen stage typically lasts four to six months. Inflammation begins to subside and pain becomes less intense, but significant scar tissue continues to severely limit movement.

The thawing stage is characterized by a gradual return of shoulder mobility. The fibrotic tissue within the capsule starts breaking down, allowing the capsule to relax and stretch more easily. Improvements are slow and incremental — a complete return to normal or near-normal motion can take six months to two years.

Frozen shoulders will naturally progress through all three stages even without treatment. However, in some individuals the full resolution can take two to three years. In my practice, I recommend a proactive and aggressive treatment strategy rather than a wait-and-see approach, because prolonged immobility during the freezing and frozen stages can lead to muscle atrophy and increase the risk of secondary complications such as rotator cuff problems and shoulder impingement.

Does Physical Therapy Work for Frozen Shoulder?

Exercise therapy is one of the three treatments I most strongly recommend for frozen shoulder. Regular stretching improves range of motion, prevents further stiffness and muscle atrophy, and supports functional recovery so patients can resume daily activities.

A common question is whether formal physical therapy visits are necessary or whether a self-directed home exercise program is sufficient. Systematic reviews and meta-analyses examining the effectiveness of various physical therapy modalities for adhesive capsulitis report conflicting results. While treatments like manual therapy and ultrasound therapy offered by physical therapists can be beneficial, what remains consistently clear across all studies is the critical importance of a dedicated stretching regimen.

For patients who find it challenging to attend regular physical therapy appointments, performing a structured home exercise program at least twice daily is an excellent alternative. I have included a detailed frozen shoulder exercise program at the end of this article.

Are Corticosteroid Injections Effective for Frozen Shoulder?

Even the best exercise regimen can be difficult to follow when pain severely limits movement, which is often the case during the freezing phase. This is where corticosteroid injections become invaluable. Performed in the office under ultrasound guidance, these injections can provide rapid pain relief and make it far easier to participate in rehabilitation exercises.

A systematic review and network meta-analysis published in JAMA Network Open compared intra-articular corticosteroid injections with other common treatments including physical therapy, acupuncture, placebo, and no treatment. The authors found that cortisone injections were both statistically and clinically superior in providing short-term pain relief and improving function. Furthermore, the review concluded that combining cortisone injections with a home exercise program maximizes the chances of recovery.

Timing matters significantly. Corticosteroid injections are most effective when administered early in the freezing stage, when pain and inflammation are most severe. Early intervention can drastically reduce inflammation and minimize the development of restrictive scar tissue, potentially shortening the overall duration of the condition.

For patients concerned about the side effects of cortisone: the chondrotoxic effects of corticosteroids are primarily a concern for weight-bearing joints like the knees and hips. The glenohumeral joint in the shoulder does not bear weight in the same way, making the risk of cartilage damage significantly lower. In my practice, the benefits of reduced inflammation and improved mobility in the shoulder typically outweigh the potential risks.

What Is Capsular Distension (Hydrodilation) for Frozen Shoulder?

Capsular distension — also called hydrodilation — is one of my preferred treatments for frozen shoulder. This minimally invasive, ultrasound-guided procedure is performed in the office. A large volume of sterile saline mixed with a corticosteroid and local anesthetic is injected directly into the shoulder joint. The goal is to stretch the joint capsule from the inside, similar to inflating a water balloon. The pressure from the fluid stretches and breaks up the adhesions caused by frozen shoulder.

A network meta-analysis in the American Journal of Sports Medicine found that capsular distension ranked highest among nonsurgical treatments for reducing pain and improving function. Additional evidence from an overview of meta-analyses demonstrates that combining hydrodilation with a corticosteroid injection can expedite recovery compared to cortisone injection alone or physical therapy.

A major advantage of capsular distension is its effectiveness at every stage of frozen shoulder. While corticosteroid injections work best during the freezing phase, capsular distension remains valuable for patients in the frozen phase or those experiencing slow progress through the thawing phase. The procedure is extremely safe and can be repeated if necessary — unlike corticosteroid injections, where repeated use raises concerns about accumulating side effects.

In my practice, I recommend a combination of corticosteroid injection, capsular distension, and exercise therapy as the preferred treatment regimen for all patients with frozen shoulder. This approach consistently yields the best results in terms of pain relief and functional improvement.

Should You Take NSAIDs for Frozen Shoulder Pain?

Non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen, naproxen, diclofenac, celecoxib, and meloxicam can be effective for short-term pain management. The goal of taking NSAIDs should be to manage pain well enough to effectively perform your exercise program.

However, NSAIDs carry the risk of serious side effects when taken for prolonged periods. Long-term use can increase the risk of heart attacks, strokes, and high blood pressure, and can cause damage to the kidneys and stomach. Occasional use as needed is generally safe, but daily use for weeks or months can lead to significant complications. In most cases, corticosteroid injections and capsular distension provide better pain control and reduce the need for oral medications.

Can a Suprascapular Nerve Block Help Frozen Shoulder?

The suprascapular nerve provides sensory input to the shoulder and motor control to parts of the rotator cuff. A nerve block involves injecting a local anesthetic — and sometimes a steroid — around this nerve to block pain signals from the shoulder, allowing patients to more actively participate in rehabilitation.

The evidence on suprascapular nerve blocks for frozen shoulder is mixed. A randomized double-blind placebo-controlled trial by Shanahan et al. found that patients who received the nerve block reduced the duration of their symptoms by an average of six months compared to placebo. However, a separate randomized controlled trial found that suprascapular nerve blocks were no more effective than saline injections in subacute adhesive capsulitis.

Clinical trials comparing suprascapular nerve blocks to intra-articular corticosteroid injections have found both treatments to be similarly effective. Other research has shown that combining an intra-articular corticosteroid injection with a suprascapular nerve block resulted in significantly better improvements in pain and functional scores compared to corticosteroid injection alone.

The main limitation of the suprascapular nerve block is accessibility — most physicians are not trained to perform this procedure, and many insurance plans require prior authorization. However, if it is covered by your insurance and available to you, it can be an excellent supplementary treatment alongside corticosteroid injections, capsular distension, and exercise therapy.

When Is Surgery Necessary for Frozen Shoulder?

For severe cases that have not responded to conservative treatment, two surgical options are commonly considered: manipulation under anesthesia (MUA) and arthroscopic capsular release (ACR).

MUA involves forcibly moving the shoulder joint while the patient is under general anesthesia to break up adhesions and stretch the joint capsule. No incisions are made. Arthroscopic capsular release is a minimally invasive surgical procedure in which a surgeon makes small incisions to cut through the thickened adhesions. Both procedures are typically followed by a structured physical therapy program.

A prospective randomized trial showed that both MUA and ACR yielded similar improvements in pain relief and shoulder function. However, manipulation under anesthesia was more cost-effective.

Perhaps more importantly, the landmark UK FROST trial published in The Lancet — a pragmatic, three-arm randomized clinical trial involving over 500 patients — found that at one year post-treatment, none of the three interventions (MUA, ACR, or early structured physiotherapy with steroid injection) were clinically superior to the others. Notably, all ten serious adverse events reported in the trial occurred only in the surgical groups.

For this reason, I recommend surgical management only for patients who have truly exhausted other options. Given the effectiveness of combining capsular distension, corticosteroid injections, and exercise therapy, I have rarely found it necessary to refer patients with frozen shoulder for surgery.

Is PRP Injection Effective for Frozen Shoulder?

Platelet-rich plasma (PRP) is a regenerative treatment that leverages the healing properties of your own blood. A blood draw is performed, the blood is processed in a centrifuge to concentrate the platelets and growth factors, and the resulting concentrate is injected into the affected area.

A systematic review of prospective cohort studies published in Arthroscopy found that PRP injections for adhesive capsulitis are at least equivalent to corticosteroid or saline injections and can lead to improved pain, motion, and functional outcomes at three to six months. A separate systematic review comparing PRP to common non-surgical treatments reported that pain scores, DASH disability scores, and SPADI pain and disability index scores were all superior in the PRP group compared to controls.

PRP is an excellent treatment option for frozen shoulder, particularly for patients who are concerned about the side effects of cortisone. However, PRP injections are not covered by insurance and typically cost between $750 and $1,500 per injection. Given that we have other highly effective options with low side-effect profiles, the cost-benefit ratio of PRP for frozen shoulder specifically should be carefully considered.

Does Shockwave Therapy Work for Frozen Shoulder?

Extracorporeal shockwave therapy is a non-invasive treatment that uses high-energy sound waves to treat musculoskeletal conditions. A handheld device delivers shockwaves directly to the affected area, which helps reduce pain and inflammation, stimulate blood flow, promote the formation of new blood vessels, and restore mobility.

A typical course consists of three to five sessions spaced one week apart, with each session lasting approximately 15 to 20 minutes. A randomized trial comparing extracorporeal shockwave therapy with corticosteroid injections in diabetic patients with adhesive capsulitis found that both treatments significantly improved pain and function — but the shockwave therapy group experienced better outcomes in function and pain reduction at 12 weeks.

If you have access to shockwave therapy, it can be a valuable option with typically no side effects. The downside is that it is not covered by insurance, with each treatment costing approximately $150 to $250. A full course of five treatments would range from $750 to $1,250.

Is Laser Therapy Effective for Frozen Shoulder?

Laser therapy — also known as photobiomodulation — uses specific wavelengths of light to interact with tissue and accelerate healing. It can help reduce pain, swelling, and spasms while increasing functionality.

A systematic review and meta-analysis found that high-intensity laser therapy can help with pain and disability in frozen shoulder patients, but it did not outperform conventional physical therapy in improving range of motion. Laser therapy sessions are generally short — typically five to ten minutes — and patients may require multiple sessions to achieve optimal results. Like PRP and shockwave therapy, laser therapy is not covered by insurance and will cost several hundred dollars for a full course of treatment.

Frozen Shoulder Exercise and Rehabilitation Program

Clinical trials suggest that performing a structured exercise program at least two to three times daily produces excellent outcomes. The following program targets the key range-of-motion deficits seen in frozen shoulder.

Active Warm-Up

Shoulder rolls: With your arms relaxed at your sides, lift your shoulders toward your ears and gently roll them forward in a circular motion. Perform 10 repetitions forward and 10 backward.

Scapular squeezes: With your arms at your sides, pull your shoulder blades toward each other and squeeze. Hold for one to two seconds, then return to the starting position. Repeat 10 times.

Pendulum Exercises

Lean forward and let your arm hang down. Sway your body in a circular motion, allowing your arm to swing in small circles — 10 repetitions. Then sway side to side for 10 repetitions, and finally forward and backward for 10 repetitions.

Stick-Assisted Range of Motion Stretches

You will need a long stick such as a broomstick, PVC pipe, or cane — any long object you can hold comfortably with both hands. For each of the following stretches, a pain level of approximately 3 to 4 out of 10 is acceptable. Hold each maximum position for about five seconds, return to the starting position, and try to increase the range with each repetition. Perform each stretch for one to two minutes.

Forward flexion stretch: Hold the stick in front of you. Use the unaffected arm to push the stick forward and upward, lifting the affected arm as high as possible.

Abduction stretch: Hold the stick with both hands. Use the unaffected arm to push the stick outward to the side, moving the affected arm away from your body and upward.

External rotation stretch: Bend the elbow of the affected arm to 90 degrees. Push the stick with the other hand, causing the affected forearm to rotate outward.

Internal rotation stretch: Hold a stick, towel, or belt behind your back with both hands. Pull upward with the top hand to internally rotate the affected shoulder.

The most important aspect of this program is consistency. The goal is to gradually restore range of motion by stretching the adhesions and scar tissue that have developed around the shoulder joint. Ideally, perform this program two to three times every day.

It is also important to note that many individuals recovering from frozen shoulder experience significant loss of strength and muscle mass. Once forward flexion and abduction range of motion reach at least 120 to 140 degrees, a progressive strengthening program should be incorporated to address rotator cuff weakness and prevent secondary complications.

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References

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6. Shanahan EM, Gill TK, Briggs E, Hill CL, Bain G, Morris T. Suprascapular nerve block for the treatment of adhesive capsulitis: a randomised double-blind placebo-controlled trial. RMD Open. 2022;8(2). doi:10.1136/rmdopen-2022-002648

7. Schiltz M, Beeckmans N, Gillard B, De Baere T, Hatem SM. Randomized controlled trial of suprascapular nerve blocks for subacute adhesive capsulitis. Eur J Phys Rehabil Med. 2022;58(4):630-637. doi:10.23736/S1973-9087.22.07410-X

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9. Jung TW, Lee SY, Min SK, Lee SM, Yoo JC. Does combining a suprascapular nerve block with an intra-articular corticosteroid injection have an additive effect in the treatment of adhesive capsulitis? Orthop J Sports Med. 2019;7(7):2325967119859277. doi:10.1177/2325967119859277

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12. Nudelman B, Song B, Higginbotham DO, Piple AS, Montgomery WH. Platelet-rich plasma injections for shoulder adhesive capsulitis are at least equivalent to corticosteroid or saline solution injections: A systematic review. Arthroscopy. 2023;39(5):1320-1329. doi:10.1016/j.arthro.2023.01.013

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Medical Disclaimer: This content is for educational purposes only and does not substitute for the medical advice of a physician. Always consult your healthcare provider before beginning any new treatment program. The information presented reflects the opinion of Dr. Jeffrey Peng and does not represent the views of his employers or affiliated hospital systems.