Endoscopic Sinus Surgery (ESS)

Table of Contents

Endoscopic Sinus Surgery (ESS) Introduction

Endoscopic Sinus Surgery (ESS) is a modern surgical technique used to treat chronic sinus problems that do not respond to medications. It is a form of endoscopic surgery, meaning it is performed using a small telescope (endoscope) inserted through the nostrils. This allows the surgeon to see and work inside the sinuses without making any external cuts.

This surgery aims to open up blocked sinus pathways, improve drainage, and reduce symptoms such as facial pressure, nasal congestion, runny nose or post-nasal drip, decreased sense of smell and frequent infections.

Goals of Surgery

  • Restore normal sinus drainage
  • Improve nasal airflow
  • Reduce or eliminate recurrent infections
  • Improve your sense of smell
  • Reduce facial pain or pressure

While surgery can greatly improve symptoms, some patients may still require ongoing medical treatment for allergies or inflammation afterwards.

Reasons for surgery

ESS may be recommended if you have:

  • Chronic sinusitis: Symptoms lasting more than 12 weeks, including congestion, facial pressure, nasal discharge, or loss of smell.
  • Recurrent acute sinus infections: Several episodes of sinus infections each year, despite treatment.
  • Nasal polyps: Soft, noncancerous growths in the nasal passages or sinuses that block airflow and drainage.
  • Sinus problems related to allergies, asthma, or structural issues that haven’t improved with other treatments.

Before considering surgery, Dr Phillips will usually try medical therapies such as nasal sprays, saline rinses, antibiotics, and possibly steroids if they haven’t already been tried by your local GP. If symptoms continue, ESS may be the next step.

Benefits of the procedure

  • Minimally invasive surgery – no external cuts or visible scars
  • Improved breathing and nasal function
  • Fewer sinus infections and less reliance on antibiotics
  • Faster recovery time compared to older surgical methods

Risks & complications

As with any surgery, there are some risks involved, although serious complications are rare. These may include:

  • Bleeding
  • Infection
  • Bruising or swelling around the eyes
  • Persistent sinus symptoms
  • Scar tissue or sinus blockage recurring over time
  • Leakage of cerebrospinal fluid (very rare)
  • Vision problems or eye injury (extremely rare)

Your surgeon, Dr Phillips, will discuss these risks with you in detail and answer any questions you may have.

Pre-operative instructions

Medications

Let Dr Phillips know about any medications or supplements you’re taking, especially blood thinners. Some may need to be paused before surgery.

Smoking

Avoid smoking, as it can delay healing and reduce the success of the procedure.

Fasting

If you’re having general anaesthesia, do not eat or drink anything for at least 6 hours before surgery. Follow instructions from your anaesthetist or hospital.

Illness

If you develop a cold, fever, or infection close to your surgery date, let us know as your surgery may need to be postponed.

Procedure details

Endoscopic sinus surgery is usually performed under general anaesthesia and takes about 1–2 hours, depending on the extent of the sinus disease.

  • A thin telescope (endoscope) is passed through the nostrils to view the sinus openings.
  • Blocked or inflamed tissue is carefully removed to create wider drainage pathways.
  • Polyps (if present) may also be removed.
  • Bleeding is addressed and nasal packing may be placed (to be removed at the first post op visit typically 1-2 weeks after surgery)

Because the surgery is done through the nose, there are no external cuts and any sutures placed inside the nose are dissolvable.

Post-operative care & recovery

Hospital Stay

Most patients go home the same day (day surgery), although some may stay overnight if needed.

Nasal Blockage

Your nose will likely feel blocked or congested for 1–2 weeks after surgery due to swelling or crusting. This temporary nasal obstruction is normal during the early healing phase.

Pain

Mild to moderate discomfort or pressure in the nose is common and you will feel quite congested and tired, like having a cold or flu. In most cases this can be managed with regular pain relief such as paracetamol or ibuprofen. Stronger pain relief is provided as necessary.

Bleeding

A small amount of ooze or bleeding is normal for 1 week post op. Significant bleeding is uncommon. If bleeding is heavy or persistent, seek medical attention.

Saline Irrigation

To promote healing and prevent crusting, you’ll be asked to rinse your nose with a saline solution (e.g., FLO or FESS) multiple times a day. Start as directed, in most cases the following morning after surgery.

Activity

  • Light walking is fine.
  • Avoid strenuous activity, heavy lifting, and bending over for 2 weeks.
  • Most people can return to work or school within two weeks, depending on how they feel and their type of occupation.

What to watch for

Contact our clinic or seek urgent medical attention if you experience:

  • Heavy or ongoing bleeding
  • High fever (over 38.5°C)
  • Severe pain not relieved by medication
  • Swelling of the face or eyes
  • Foul-smelling discharge

Follow-up instructions

A follow-up appointment will be arranged with Dr Phillips about 1–2 weeks after surgery. During this visit, any crusts or remaining packing may be removed, and healing will be checked.
You may need several follow-up visits to monitor healing and maintain the surgical openings.

Frequently asked questions (FAQ)

  • Will this change how my nose looks?

    No. This is not a cosmetic procedure and does not change the external shape of your nose.

  • Can the problem come back?

    Endoscopic sinus surgery helps improve sinus drainage and function, but it doesn’t cure the underlying cause of chronic sinusitis. You may still need: 

    Ongoing nasal sprays or rinses
    Allergy treatment or management
    Monitoring for recurrence of symptoms

    Following your surgeon’s advice and sticking to your nasal care routine is essential for long-term success.

  • What is functional endoscopic sinus surgery (FESS)?

    Functional endoscopic sinus surgery, like ESS, is a minimally invasive procedure performed through the nostrils using a nasal endoscope. It aims to restore natural sinus drainage by carefully opening blocked sinus pathways and removing diseased tissue when required.

    FESS is commonly used for chronic sinus infection (sinusitis), nasal polyps and other sinus symptoms such as nasal obstruction, rhinorrhoea, or post nasal drip that have not improved with medical therapy. This approach aims to restore ventilation and drainage of the functional sinus cavities, allowing mucus to clear more effectively.

  • Is FESS the same as endoscopic sinus surgery?

    FESS is considered the modern approach to endoscopic sinus surgery. Both procedures use similar endoscopic techniques, but FESS focuses on preserving healthy sinus tissues while improving ventilation and drainage of the sinus cavities. The choice of technique depends on your specific sinus condition and CT scan findings.

  • What is the functional endoscopic sinus surgery success rate?

    Studies show many patients experience an improvement in symptoms such as nasal congestion, sinus pressure and recurrent sinus infections after FESS. Outcomes vary depending on factors such as inflammation, allergies, nasal polyps and adherence to postoperative care. Dr Phillips will discuss the likely benefits based on your individual sinus pattern and medical history.

  • What are the functional endoscopic sinus surgery risks?

    Risks are similar to other forms of endoscopic sinus surgery and may include bleeding, infection, scar tissue formation or ongoing sinus symptoms. Rare complications include a cerebrospinal fluid leak or injury to structures around the eye. Dr Phillips will outline these risks in detail and discuss how they are minimised during surgery.

  • How long does recovery take after endoscopic sinus surgery?

    Most people resume light activity within a few days and return to work within one to two weeks, depending on how they feel and the type of work they do. Nasal congestion, mild discomfort and small amounts of bloody discharge are common in the first week. The sinuses continue to heal over several weeks, so ongoing care, such as saline rinses, is important.

  • Is endoscopic sinus surgery painful?

    Discomfort after surgery is generally mild to moderate. Many patients describe it as similar to having a heavy cold. Pain is usually managed with standard medications, and Dr Phillips will provide guidance on how to reduce pressure, congestion and discomfort during the early recovery period.

  • Will endoscopic sinus surgery help improve my sense of smell?

    Many patients with chronic sinusitis notice a reduced or fluctuating sense of smell due to ongoing inflammation or blocked sinus pathways. Endoscopic sinus surgery may help improve airflow and allow the sinuses to function more normally, which can support improvement in smell over time. Results vary from person to person and depend on factors such as underlying inflammation, allergies and the presence of nasal polyps. Dr Phillips will discuss what to expect based on your individual condition.

  • Can endoscopic sinus surgery treat nasal polyps?

    Yes. Nasal polyps can be removed during endoscopic sinus surgery to improve airflow and sinus drainage. Some individuals may require ongoing treatment after surgery, as polyps can recur due to underlying inflammation or allergies.

  • Do I need antibiotics after surgery?

    Not everyone requires antibiotics. They may be prescribed if there is evidence of infection or significant inflammation. Most postoperative care focuses on nasal rinses, topical nasal steroid sprays (when appropriate) and follow-up appointments to ensure the sinuses heal as expected.

  • What can stop the sinuses from healing properly?

    Healing can be affected by persistent inflammation, allergies, nasal polyps, infection or the formation of scar tissue. Avoiding nose blowing, completing saline rinses as directed and attending scheduled follow-up appointments all help support healing and reduce the chance of problems in the early weeks after surgery.

Book a consultation

If you’d like to discuss this procedure or explore suitable treatment options, please get in touch with Dr Nicholas Phillips’ clinic.