What Are the Best Nasal Sprays?
For many people in Melbourne and across Victoria, blocked noses, hay fever, and sinus problems…
Persistent sinus problems are among the most common and most frustrating conditions that patients bring to the ENT surgeons at Melbourne ENT. Facial pressure behind the eyes and cheekbones, a nose that never feels clear, disrupted sleep from a blocked airway, and recurring infections that respond briefly to antibiotics before returning – these are experiences that many patients have been managing for months or years by the time they seek specialist care.
What is typically missing from that journey is a precise picture of what is actually driving the symptoms. Without that picture, treatment remains imprecise. Antibiotics address a bacterial flare but do nothing about the structural blockage or persistent inflammation that created the conditions for infection in the first place.
A sinus CT scan changes this entirely. It provides the detailed anatomical and pathological information that transforms a pattern of recurring symptoms into an accurate, specific diagnosis with a clearly identifiable cause – and from there, a treatment plan that addresses the problem at its source.
The paranasal sinuses are four paired, air-filled cavities within the bones of the face and skull – the frontal sinuses behind the forehead, the maxillary sinuses within the cheekbones, the ethmoid sinuses beside the nasal bridge, and the deeply positioned sphenoid sinuses centrally within the skull. When functioning normally, they produce mucus that humidifies inhaled air, traps bacteria, and drains continuously into the nasal cavity through small natural openings. This self-clearing process operates entirely without conscious awareness.
When drainage is disrupted – by infection, allergy, inflammation, or a structural obstruction – mucus accumulates and creates the warm, stagnant conditions ideal for bacterial growth. The mucosal lining swells, the drainage openings narrow further, and the cycle of chronic infection and inflammation becomes established. Very similar symptoms can arise from very different underlying causes, which is precisely why accurate imaging is so important before any treatment decision is made.
A sinus CT generates cross-sectional images through the entire sinonasal system with a precision that no other routine investigation can approach. Dr Simon Braham reviews these images alongside clinical history and nasal endoscopy findings to build a complete diagnostic picture before any treatment is recommended.
CT imaging and nasal endoscopy provide different types of information and may be used together depending on the clinical situation. Read more about how CT scans and nasal endoscopy differ in nasal assessment.
CT shows exactly which sinuses are affected, how severely, and whether disease is one-sided or bilateral. This distribution directly guides diagnosis – widespread bilateral disease typically reflects a systemic inflammatory process such as allergy or aspirin sensitivity, while consistently unilateral disease raises the possibility of a structural cause, a dental infection, a fungal process, or in some cases a pathology requiring further investigation to exclude a sinonasal tumour.
The ostiomeatal complex is the small but critical junction where the frontal, maxillary, and ethmoid sinuses converge to drain. When this area is blocked – by swelling, a polyp, or a structural narrowing – all three sinuses are simultaneously affected. CT is the only investigation that images this region with sufficient precision for both diagnosis and surgical planning. For patients undergoing Functional Endoscopic Sinus Surgery (FESS), the CT image of this area functions as a precise surgical road map.
Nasal polyps extending deep into the sinus cavities may not be fully visible on endoscopy alone. CT maps their precise size, location, and extent across all four sinus groups, informing whether medical therapy, biological treatments, or surgical polypectomy is the appropriate next step. Structural variants such as a deviated septum, concha bullosa, or Haller cells that are directly narrowing drainage pathways are also clearly identified – and when found, may be corrected concurrently at the time of sinus surgery.
Not every patient with sinus symptoms requires a CT scan, and at Melbourne ENT, imaging is never ordered without a clear clinical indication. It becomes necessary when symptoms have persisted for 12 weeks or more despite appropriate medical treatment – the clinical definition of chronic rhinosinusitis. It is indicated when a patient experiences three or more acute sinus infections per year, when nasal endoscopy identifies polyps or findings that cannot be fully characterised, or when any sinus or nasal surgery is being considered.
Certain presentations make imaging urgent. Consistently unilateral symptoms, a suspected sinonasal mass, or warning signs of possible complications – including eye swelling, visual changes, or severe unrelenting headache – require prompt CT to guide the appropriate response. In children, CT may be recommended when persistent mouth-breathing, recurrent ear infections, or significant snoring suggests sinus disease that has not responded to conservative treatment and in which surgery is being considered.
No fasting, medication changes, or injections are required for a standard sinus CT. Patients remove metallic items before entering the scanning room, then lie on a motorised table that passes smoothly through a large, open ring – not an enclosed tunnel – while the X-ray beam captures images in ten to twenty seconds. The scan is entirely painless. The full appointment typically takes fifteen to thirty minutes, and results are reported by a specialist radiologist and sent to Dr Simon Braham within twenty-four to forty-eight hours.
Modern low-dose sinus CT protocols deliver a radiation dose comparable to only a few days of normal background environmental radiation – well within accepted safety thresholds. For children, paediatric-specific protocols apply the internationally recognised ALARA principle, minimising exposure while maintaining full diagnostic image quality. Advances in CT technology over the past decade have made high-quality diagnostic imaging achievable at a fraction of the radiation dose older systems required.
CT excels at depicting bony sinus architecture, the ostiomeatal complex, structural variants, and the anatomical detail that sinus surgery demands. It is fast, widely available, and does not require patients to lie within an enclosed bore for extended periods. MRI provides superior soft tissue contrast and involves no ionising radiation, but delivers considerably less bony detail and takes significantly longer. For the assessment of chronic sinusitis, recurrent infection, nasal polyps, and pre-operative sinus planning, CT is unambiguously the appropriate first-line investigation. MRI is added in specific circumstances – when a sinonasal mass requires detailed soft tissue characterisation, when orbital or intracranial extension of infection is suspected, or when minimising cumulative radiation exposure has become a clinical priority.
CT findings are always interpreted in the context of the patient’s full clinical picture – not in isolation. For patients whose scan confirms inflammatory disease without significant structural pathology, optimised medical therapy is often the appropriate first step: intranasal corticosteroid sprays at therapeutic doses, high-volume saline irrigation, and where appropriate, allergy management or a course of antibiotics for confirmed bacterial infection. For those with severe recalcitrant nasal polyps, newer biological therapies including dupilumab are now approved in Australia through the PBS in appropriate circumstances.
When medical management has been optimised but symptoms persist, or when CT identifies structural obstruction that will not resolve without intervention, Dr Simon Braham discusses FESS in detail – the purpose of the procedure, the specific CT findings guiding the recommendation, the expected benefits, the realistic risks, and the recovery process. FESS is performed entirely through the nostrils under general anaesthesia, with no external incisions. Most patients return to normal daily activities within one to two weeks. Septoplasty and turbinate reduction may be performed concurrently when CT findings indicate they will provide meaningful additional benefit. Dr Simon Braham operates at Masada Private Hospital, St Kilda East, and holds a consultant ENT appointment at the Royal Victorian Eye and Ear Hospital in Melbourne.
Sinus CT scans are generally eligible for a Medicare rebate when clinically indicated and referred by a registered medical practitioner. At bulk-billing radiology centres, the scan may be provided at no cost to the patient. At non-bulk-billing centres, the rebate significantly reduces out-of-pocket expense. Patients should confirm billing arrangements with their chosen radiology provider at the time of booking.
Surgical procedures including FESS, septoplasty, turbinoplasty, and nasal polypectomy attract applicable Medicare Benefits Schedule item numbers when performed for documented clinical indications that meet MBS criteria. The specialist consultation with Dr Simon Braham also attracts a Medicare rebate for patients holding a valid GP referral. For patients with private health insurance that includes hospital cover, additional benefits may further reduce or eliminate out-of-pocket surgical costs at Masada Private Hospital. The Melbourne ENT team provides clear, written cost information – including item numbers, estimated fees, and any expected gap payments – before any procedure is scheduled, ensuring no patient faces unexpected financial surprises.
Children with sinus disease rarely describe the classic facial pressure and headache of adult sinusitis. They more commonly present with persistent nasal congestion, chronic mouth-breathing, recurrent ear infections, snoring and disturbed sleep, and in older children, subtle difficulties with concentration and learning that reflect the impact of consistently poor sleep. Dr Simon Braham has extensive paediatric ENT experience developed through his work at the Royal Victorian Eye and Ear Hospital and Masada Private Hospital. CT for children is recommended only when there is a clear clinical indication, and paediatric low-dose protocols minimise radiation exposure while maintaining full diagnostic quality.
A normal CT is genuinely useful information – it tells Dr Simon Braham that the sinuses themselves are not the primary source of the problem and redirects the investigation accordingly. Conditions that produce identical sinus symptoms without abnormal CT findings include primary allergic rhinitis, vasomotor rhinitis, nasal valve collapse, migraine presenting as facial pressure, or a functional breathing pattern disorder. A normal scan sharpens the diagnostic focus and points toward the investigations most likely to find the actual answer.
Regular intranasal steroid sprays can reduce mucosal thickening before a scan and may mean the CT slightly underrepresents peak disease severity. A decongestant taken shortly beforehand can temporarily shrink the mucosal lining. Neither prevents a useful scan – bony anatomy, structural variants, polyps, and retained secretions remain clearly visible – but it is worth mentioning your current medications to Dr Simon Braham so findings can be interpreted in context.
CT becomes more important, not less, as the history of sinus disease lengthens. In patients who have had previous sinus surgery, an up-to-date CT is essential for assessing whether prior surgical cavities remain patent, whether polyps have recurred, and whether any anatomical factors were not fully addressed at the original procedure. Revision sinus surgery is technically more demanding than primary FESS and is impossible to plan safely without current detailed imaging.
CT can confirm or exclude significant sinus disease as a structural contributor to facial pain. When the sinuses appear clear, it provides strong evidence that sinusitis is not the source – and redirects the assessment toward other causes including migraine, tension headache, or trigeminal neuralgia. Research consistently shows that a significant proportion of patients self-diagnosed or diagnosed by a GP with sinus headache are actually experiencing migraine, which can produce facial pressure and nasal congestion almost indistinguishable from sinusitis. Identifying this on the basis of a normal CT can be a genuinely transformative moment in a patient’s diagnostic journey.
Consistently unilateral sinonasal symptoms are taken seriously and investigated with particular care at Melbourne ENT. While a straightforward structural explanation is most common – a deviated septum, a unilateral concha bullosa, or a dental source of infection in the adjacent maxillary sinus – unilateral symptoms can also be the presenting pattern of a sinonasal tumour at an early stage. For this reason, consistently one-sided symptoms should always prompt CT regardless of how long they have been present or how clinically benign they appear.
CT after previous sinus surgery provides a detailed picture of the current state of the modified anatomy – whether surgical drainage pathways remain open, whether scarring has re-narrowed previously opened passages, and whether polyps have recurred. What CT cannot reliably predict is the precise biological risk of future recurrence, as this depends on underlying inflammatory factors including allergy, eosinophilic disease burden, and the effectiveness of ongoing medical management. CT provides the current anatomical picture; that picture, combined with clinical assessment, guides the most informed recommendation about next steps.
CT provides the essential anatomical foundation for surgical planning but does not capture every dimension relevant to surgical outcomes. The health and healing capacity of the mucosal lining at a cellular level, the degree of eosinophilic or allergic inflammation driving polyp formation, the presence of aspirin-exacerbated respiratory disease, and the patient’s adherence to post-operative irrigation and medical therapy are all factors that significantly influence long-term results and are assessed through clinical history, blood tests, and tissue pathology rather than imaging. Dr Simon Braham integrates all of these alongside CT findings to build the most complete picture possible for each individual patient.
Persistent sinus symptoms that affect sleep, breathing, concentration, or quality of life deserve a thorough specialist assessment – not another short-term fix. Dr Simon Braham, ENT and Head and Neck Surgeon, provides comprehensive sinus evaluations at Melbourne ENT, Masada Medical Centre, Level 1, 26 Balaclava Road, St Kilda East, for adults and children across Melbourne and regional Victoria. A valid GP referral is required to book a specialist consultation and to access your Medicare rebate.
The Melbourne ENT team is available Monday to Friday, 9am to 5pm, to assist with referrals, appointment enquiries, and questions about the consultation process. Getting the right diagnosis is the first step to breathing easier.
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