Sinus Surgery Didn’t Work? What to Do Next
If you’ve had sinus surgery but are still struggling with blocked nose, infections, pressure, or loss of smell, you’re not alone. While Functional Endoscopic Sinus Surgery (FESS) is highly effective for many patients, a proportion continue to have symptoms or experience recurrence.
At Hampshire ENT Clinics, we frequently see patients for persistent or recurrent sinus symptoms after surgery, and in most cases there is a clear reason — and a solution.
👃 Why Might Sinus Surgery Not Have Worked?
Sinus surgery doesn’t “fail” randomly. Ongoing symptoms are usually due to underlying disease, incomplete treatment, or healing factors.
1. Ongoing Inflammation (Most Common Cause)
The biggest reason is persistent inflammation, particularly in:
Chronic rhinosinusitis with nasal polyps (CRSwNP)
Allergy-related sinus disease
Type 2 (eosinophilic) inflammation
Surgery opens the sinuses — but it doesn’t cure the underlying inflammatory condition.
2. Nasal Polyps Have Come Back
Polyps can regrow over time, especially if inflammation is not well controlled.
Typical signs:
Gradual return of blockage
Loss of smell again
Increasing congestion
3. Sinuses Not Fully Opened (Incomplete Surgery)
In some cases, the original surgery may not have fully addressed all blocked sinus pathways.
This is more likely if:
Disease was extensive
Surgery was limited or conservative
Access to certain sinuses was restricted
4. Scar Tissue (Postoperative Scarring)
Healing can sometimes lead to scar tissue narrowing the sinus openings again, reducing drainage.
5. Incorrect Diagnosis
Sometimes the symptoms are not primarily sinus-related.
Other causes of “sinus-like” symptoms include:
Nasal valve collapse
Deviated septum
Chronic rhinitis
Migraine or facial pain syndromes
🔍 How We Assess Failed Sinus Surgery
A proper review is essential — not just repeating treatment.
At Hampshire ENT Clinics, assessment includes:
Detailed history (what improved vs what didn’t)
Flexible nasendoscopy (camera examination)
Review of previous surgery
CT scan of the sinuses
Assessment for polyps, inflammation, or structural issues
This allows us to identify the exact cause of persistent symptoms.
💊 Treatment Options After Failed Sinus Surgery
1. Optimised Medical Therapy
Many patients benefit from targeted medical treatment, including:
High-volume saline rinses
Steroid irrigations (stronger than sprays)
Allergy management
Short courses of oral steroids
2. Biologic Therapy (Game-Changer for Polyps)
For patients with recurrent polyps or severe inflammation, biologic treatments can be highly effective.
Examples include:
Dupilumab (Dupixent®)
Mepolizumab (Nucala®)
Omalizumab (Xolair®)
These target the underlying inflammation and can:
Reduce polyp regrowth
Improve smell
Reduce need for repeat surgery
3. Revision Sinus Surgery
In selected cases, revision FESS may be recommended.
This involves:
Re-opening blocked sinus pathways
Removing scar tissue
Addressing residual disease
Often using image-guided navigation for precision
Revision surgery is more complex and should be performed by a specialist sinus surgeon.
4. Treating Other Causes
If symptoms are not sinus-related, treatment may focus on:
Septoplasty or nasal valve surgery
Treatment of rhinitis
Managing reflux or headache disorders
🌟 The Key Message
If sinus surgery hasn’t worked, it doesn’t mean nothing can be done.
In most cases:
There is a clear reason
The problem can be identified
Effective treatment options are available
🩺 When Should You Seek a Second Opinion?
You should consider specialist review if:
Symptoms persist months after surgery
You’ve had multiple courses of antibiotics or steroids
Your sense of smell hasn’t returned
Symptoms have returned after initial improvement
📞 Book a Specialist Review
At Hampshire ENT Clinics, we specialise in complex sinus disease and revision surgery, offering advanced diagnostics and modern treatments across Portsmouth, Winchester and Salisbury.
👉 If your sinus surgery hasn’t worked, book a consultation for a detailed assessment and personalised treatment plan.
Persistent Symptoms After Sinus Surgery – Frequently Asked Questions
Is it normal to still have symptoms after sinus surgery?
Some symptoms are expected early on, but persistent or returning symptoms months after surgery are not typical.
If you are still experiencing:
Ongoing blockage
Recurrent infections
Loss of smell
There is usually an underlying reason that can be identified and treated.
Does this mean my sinus surgery has “failed”?
Not necessarily.
Sinus surgery is part of a long-term management strategy, particularly for inflammatory conditions.
In most cases, ongoing symptoms reflect:
Persistent inflammation
Recurrence of disease
Incomplete treatment
Healing changes
Rather than a technical failure alone.
Why do symptoms sometimes improve at first, then come back?
This pattern is very common.
Early improvement occurs because:
Sinuses are opened
Inflammation is temporarily reduced
Symptoms can return if:
The underlying inflammation is still active
Polyps regrow
Ongoing treatment is insufficient
How do I know if my problem is still sinus-related?
Not all “sinus symptoms” are actually caused by the sinuses.
Alternative causes include:
Nasal valve collapse
Deviated septum
Chronic rhinitis
Migraine or facial pain syndromes
A specialist assessment helps distinguish between these.
Can nasal polyps come back after surgery?
Yes — particularly in patients with chronic rhinosinusitis with nasal polyps (CRSwNP).
Regrowth is more likely if:
Inflammation is not well controlled
Long-term treatment is not optimised
This is why ongoing management is essential.
What is revision sinus surgery and when is it needed?
Revision surgery is considered when:
Sinus pathways have re-blocked
Scar tissue has formed
Disease was not fully treated initially
Symptoms remain severe despite medical therapy
It is typically more complex and requires specialist expertise and careful planning.
Is revision sinus surgery more difficult than the first operation?
Yes.
Revision cases involve:
Altered anatomy
Scar tissue
More complex disease patterns
For this reason, it is often performed by surgeons with advanced rhinology experience, frequently using image guidance.
What is image-guided sinus surgery and why is it important in revision cases?
Image guidance uses your CT scan as a real-time navigation system during surgery.
It improves:
Accuracy
Safety
Confidence in complex or previously operated sinuses
This is particularly valuable in revision surgery.
Can medication still help after sinus surgery?
Yes — and often significantly.
Many patients benefit from:
High-volume saline rinses
Steroid irrigations (more effective than sprays)
Allergy treatment
Short-term oral medication where needed
Optimising medical therapy is often the first step.
What are biologic treatments and when are they used?
Biologic therapies are advanced medications used in severe or recurrent inflammatory disease, especially with nasal polyps.
They are considered when:
Symptoms persist despite surgery and medication
Polyps repeatedly return
Steroids are required frequently
They target the underlying inflammation rather than just symptoms.
How do biologics compare to revision surgery?
They address different aspects of the condition:
Surgery: improves structure and drainage
Biologics: control inflammation
In many cases, they are used together as part of a long-term strategy, not as alternatives.
Why is a specialist second opinion important?
Persistent symptoms require:
Careful review of previous surgery
Detailed endoscopic examination
Interpretation of imaging
Identification of the true cause
A second opinion often reveals treatable factors that were previously missed.
What is the most common reason sinus surgery doesn’t fully work?
The most common reason is ongoing inflammation, particularly in:
Nasal polyps
Type 2 (eosinophilic) disease
Allergy-driven conditions
Surgery alone cannot control this — it must be combined with medical management.
What is the biggest misconception about failed sinus surgery?
That “nothing more can be done”.
In reality:
There is almost always a reason for ongoing symptoms
The cause can usually be identified
Effective treatment options are available