Frozen Shoulder Injection Therapy

This page is intended for educational purposes. If you would like to book an appointment or need support with frozen shoulder, please get in touch with Physio Soton Clinic in Eastleigh, near Southampton.

Introduction

Frozen shoulder, also known as adhesive capsulitis, is a painful and restrictive condition that causes progressive stiffness of the shoulder joint. It commonly affects people aged 40–60 and can significantly impact sleep, work, and everyday activities.

At Physio Soton, we provide expert assessment and treatment for frozen shoulder in Eastleigh, near Southampton, including physiotherapy, rehabilitation, and image-guided injections. For many patients, injection treatment is the most effective way forward, particularly when pain and stiffness are limiting progress.

Frozen Shoulder Therapy in Eastleigh and Southampton
Frozen Shoulder may take a long time to resolve and the joint injection should be the first line of treatment.

Injections for Frozen Shoulder: Benefits and Risks

Injections are sometimes used to help manage frozen shoulder, mainly to reduce pain.

Benefits

Pain relief
Steroid injections can help reduce shoulder pain, especially in the early stages.

Easier movement
Less pain can make it easier to move the shoulder and do daily activities.

Helps with physiotherapy
Pain relief may allow you to better tolerate exercises and physiotherapy treatment.

Short-term improvement
Many people feel better for weeks or months after an injection.


Risks and Limitations

Not a cure
Injections do not fix frozen shoulder. The condition still takes time to improve.

Pain relief may not last
Symptoms can return once the injection wears off.

Less helpful later on
Injections work best early on. They are often less effective when stiffness is the main problem.

Possible side effects
These are uncommon but can include:

  • Temporary pain after the injection

  • Skin changes around the injection site

  • Infection (rare)

Blood sugar changes
In people with diabetes, injections can temporarily raise blood sugar levels.

What Is Frozen Shoulder?

Frozen shoulder occurs when the capsule surrounding the shoulder joint becomes inflamed, thickened, and tight, leading to:

  • Persistent shoulder pain

  • Marked stiffness

  • Reduced range of movement (especially lifting and rotation)

  • Night pain and disturbed sleep

The condition often develops gradually and typically progresses through three stages:

  1. Painful (freezing) stage

  2. Stiff (frozen) stage

  3. Recovery (thawing) stage

Without appropriate treatment, frozen shoulder can last 12–24 months or longer.

Is Frozen Shoulder Injection the Best Treatment?

For most patients, yes.

While physiotherapy plays an important role, physiotherapy alone is often ineffective when pain is severe. In frozen shoulder, pain limits movement — and movement is essential for recovery.

👉 Injection treatment is often the best way forward because it:

  • Reduces inflammation inside the joint

  • Relieves pain more quickly

  • Allows more effective physiotherapy and rehabilitation

  • Can shorten the overall duration of symptoms

Types of Frozen Shoulder Injections

Corticosteroid Injection

A corticosteroid injection into the shoulder joint helps to:

  • Reduce inflammation

  • Improve pain

  • Increase movement

This is particularly effective in the early (painful) stage of frozen shoulder.


High Volume Injection (Hydrodilatation) ⭐

High volume injection (hydrodilatation) is often the most effective option for frozen shoulder.

It involves:

  • Injecting fluid into the shoulder joint to gently stretch the tight capsule

  • Reducing pain and stiffness

  • Improving range of movement more rapidly

At Physio Soton, high volume injection is frequently recommended for frozen shoulder and is often combined with guided rehabilitation for best results.

What Happens During Your Frozen Joint Injection Appointment?

Your appointment includes:

  • A full clinical assessment of your painful shoulder

  • Review of symptoms, movement, and function

  • Discussion of treatment options

  • Injection treatment where appropriate

  • Clear advice on physiotherapy and rehabilitation following injection

All injections are performed by experienced clinicians with a strong background in musculoskeletal assessment and rehabilitation.

Physiotherapy and Rehabilitation After Frozen Shoulder Injection

Injection treatment works best when combined with:

  • Targeted physiotherapy

  • Progressive shoulder exercises

  • Education on activity modification

Following injection, pain reduction allows you to move the shoulder more effectively, making physiotherapy significantly more beneficial.

Who Is Suitable for Frozen Shoulder Injection Treatment?

Injection treatment may be suitable if you:

  • Have been diagnosed with frozen shoulder

  • Have significant pain or stiffness

  • Are struggling to progress with physiotherapy due to pain

  • Have night pain or sleep disturbance

A full assessment is always carried out to confirm the diagnosis and suitability.

Frozen Shoulder Injection Treatment in Eastleigh Near Southampton

At Physio Soton, we offer:

  • Expert assessment of shoulder pain

  • Physiotherapy and rehabilitation

  • Corticosteroid injections

  • High volume injections (hydrodilatation)

Our clinic is based in Eastleigh, conveniently located for patients from Southampton and surrounding areas.

Book an Assessment for Frozen Shoulder Injection

If you are struggling with frozen shoulder and want clear guidance on whether injection treatment is the right option, we recommend a full assessment.

👉 Book an appointment at Physio Soton to discuss the most effective treatment plan for your shoulder.

Frozen Shoulder Exercises: Before and After Injection

Exercise is an important part of managing frozen shoulder both before and after an injection. Gentle stretching and mobility exercises help keep the shoulder moving and prevent stiffness from worsening, and after an injection they can be started (often on the same day) to take advantage of reduced pain and improve range of motion as you recover. Exercises typically include pendulum movements, assisted range‑of‑motion stretches and shoulder blade mobility work, and should be performed regularly and without forcing painful movement. A helpful printable PDF with recommended frozen shoulder exercises can be accessed here:

Frequently Asked Questions – Frozen Shoulder Injection

❓ Is an injection the best treatment for frozen shoulder?

For most patients, yes.
Frozen shoulder is driven by inflammation and tightening of the joint capsule. When pain is significant, physiotherapy alone is often limited. An injection helps reduce pain and inflammation, allowing movement to improve and making physiotherapy far more effective. In many cases, injection treatment is the best way forward, particularly in the early stages.


❓ What type of injection is best for frozen shoulder?

This depends on the stage and severity of your symptoms.

  • Corticosteroid injections are very effective for pain relief, especially early on

  • High volume injections (hydrodilatation) are often the most effective option, as they help stretch the tight joint capsule and improve movement more quickly

Following assessment, we will advise which option is most suitable for you.


❓ How long does it take for a frozen shoulder injection to work?

Many patients notice:

  • Pain relief within a few days to two weeks

  • Gradual improvement in movement over the following weeks

High volume injections may provide faster improvement in range of motion, especially when combined with rehabilitation.


❓ Will one frozen shoulder injection cure it?

An injection does not “cure” frozen shoulder instantly, but it can:

  • Significantly reduce pain

  • Improve movement

  • Speed up recovery

Some patients improve with one injection, while others may need further treatment or ongoing physiotherapy.


❓ Is physiotherapy still needed after a frozen shouder injection?

Yes — and it is much more effective after injection.

Once pain is reduced:

  • Exercises are easier to perform

  • Movement improves more quickly

  • Long-term stiffness is less likely

At Physio Soton, injection treatment is combined with targeted physiotherapy and rehabilitation for the best outcome.


❓ Is a frozen shoulder injection painful?

The procedure is usually well tolerated.
You may feel brief discomfort or pressure during the injection, but this is short-lived. Any post-injection soreness typically settles within 24–48 hours.


❓ Are corticosteroid injections safe?

When used appropriately, corticosteroid injections are considered safe and effective.
Risks and side effects will be discussed during your assessment, and injections are only offered when clinically appropriate.


❓ How long does frozen shoulder last without treatment?

Frozen shoulder can last 12–24 months or longer if left untreated.
Early assessment and appropriate treatment, including injection where indicated, can reduce pain sooner and shorten recovery time.


❓ Who should not have a frozen shoulder injection?

Injection treatment may not be suitable if you:

  • Have an active infection

  • Have poorly controlled diabetes (relative consideration)

  • Have certain medical conditions

A full assessment is always carried out before recommending injection.


❓ Do you offer frozen shoulder injections in Eastleigh?

Yes.
At Physio Soton, we provide frozen shoulder assessment and injection treatment in Eastleigh, conveniently located for patients from Southampton and surrounding areas.

Patient Resources – Frozen Shoulder (Adhesive Capsulitis)

1. NHS – Frozen Shoulder

2. Mayo Clinic – Frozen Shoulder

3. PhysioWorks – Frozen Shoulder Guide

4. OrthoInfo – American Academy of Orthopaedic Surgeons

5. Exercise Leaflets / Rehab PDFs

Tips for Using These Resources

  • Read the NHS or Mayo Clinic guides first for a general understanding.

  • Follow exercises only as recommended by your clinician.

  • Use these resources alongside professional care at Physio Soton in Eastleigh, where we provide full assessment, physiotherapy, rehabilitation, and injection treatment.

About the Author

Marek-Czeladzki-Physiotherapist-MSK-Sonographer-in-EastleighMarek Czeladzki is a highly experienced physiotherapist, musculoskeletal sonographer, and injection specialist based in Hampshire. He uses diagnostic ultrasound to assess joint and soft tissue conditions and provides ultrasound-guided injections to support pain relief and recovery. Marek works closely with patients and the wider clinical team to deliver safe, accurate, and evidence-based care.