ClariFix® vs Posterior Nasal Nerve Neurectomy: Which Treatment Is Best for Chronic Intrinsic Rhinitis?
Chronic intrinsic rhinitis—persistent nasal congestion, runny nose, and constant irritation—can have a huge impact on day-to-day life. When sprays and medications are no longer effective, patients often ask about procedures that target the posterior nasal nerve (PNN), the key nerve involved in driving these symptoms.
At Hampshire ENT Clinics, we offer modern treatments designed to reduce overactive nasal nerve function. Two of the most effective options are:
ClariFix® cryotherapy, a quick freezing treatment
Posterior nasal nerve (PNN) neurectomy, a more definitive endoscopic surgical procedure
Both target the same nerve pathway, but they differ significantly in technique, recovery, and long-term outcomes.
What Is ClariFix® Cryotherapy?
A minimally invasive, clinic-based procedure that uses targeted cold therapy to calm the overactive posterior nasal nerve.
How it works
A small probe delivers controlled cryotherapy (around –60°C) to the back of the nasal cavity. This reduces the nerve’s ability to send excessive “runny nose” and congestion signals.
Who it helps
ClariFix® is particularly effective for patients with:
Vasomotor rhinitis
Persistent symptoms despite sprays
Post-viral nasal hypersensitivity
Moderate chronic rhinitis not severe enough to merit surgery
Patients wishing to avoid general anaesthesia
Benefits
Performed under local anaesthetic
Quick (around 30 minutes)
Minimal downtime
Very low risk
No cutting, no surgical wounds
Can be a little uncomfortable and result in some ‘brain-freeze’ type symptoms at the time of treatment
Limitations
Results often take 4–6 weeks to become noticeable
Effects can be variable
May require repeat treatment
Unsuitable for patients with significant structural nasal issues
What Is Posterior Nasal Nerve Neurectomy?
A precise endoscopic surgical procedure performed in theatre under general anaesthetic to more definitively divide the nerve branches that drive vasomotor rhinitis.
How it works
Using advanced endoscopic techniques, the surgeon identifies and interrupts the PNN branches at the level of the sphenopalatine area. This reduces the parasympathetic drive responsible for excessive nasal secretions and congestion.
Who it helps
PNN neurectomy is best suited for:
Severe or refractory post-nasal drip
Patients who have failed ClariFix® or medical therapy
Individuals already undergoing septoplasty or sinus surgery
Those seeking a long-term, more predictable solution
Benefits
Stronger and more durable symptom improvement
Can be combined with corrective nasal surgery
Particularly effective for non-allergic and mixed rhinitis
Limitations
Requires general anaesthetic
Mild postoperative bleeding or crusting is possible
Slightly longer recovery than ClariFix®
Not suitable for all patients
Which Option Is Right for You?
If you’re struggling with chronic nasal symptoms, both treatments offer excellent outcomes when carefully matched to the right patient.
📞 To book an appointment at Hampshire ENT Clinics, we can create a tailored plan to improve your breathing, reduce runny nose symptoms, and regain control of your day-to-day comfort.