Nasal Obstruction in Flight: Barotrauma, Risk Groups and Prevention

Commercial aircraft cruise at 10,000-12,000 metres, but cabin pressure is maintained at the atmospheric equivalent of about 1,800-2,400 metres. During climb and descent that pressure shifts rapidly; on descent the external pressure rises and the cabin tracks it, creating a relative vacuum in the ear and sinus cavities.

In a healthy person the Eustachian tube opens with swallowing or yawning and equalises middle-ear pressure. The paranasal sinuses ventilate through the ostia. Both mechanisms rely on patent, functioning nasal mucosa. A blocked nose behaves like a sealed pressure system.

When pressure differential exceeds about 60 mmHg, the tympanic membrane retracts and capillaries can rupture — this is middle-ear barotrauma. If the frontal or maxillary sinus cannot equalise, sinus barotrauma develops, presenting with severe facial pain, pressure sensation and sometimes epistaxis. Related service: our general ENT services.

Acute viral upper respiratory infection (common cold) is the most frequent risk factor. With oedematous mucosa and increased secretion, the Eustachian tube and sinus ostia narrow. Flying with a mild cold is a personal call, but flying with acute otitis or acute sinusitis must be postponed.

Patients with septal deviation have unilateral obstruction that disrupts pressure equalisation, especially on descent — they often report unilateral ear pain or headache. Allergic rhinitis patients face the same mucosal oedema, particularly during high-pollen travel seasons.

Chronic sinusitis and nasal polyposis narrow the ostia and carry a defining risk for sinus barotrauma. Children are more susceptible because of their shorter, more horizontal Eustachian tube anatomy. Infants and toddlers need specific measures. Previous ear surgery (tympanoplasty, ventilation tubes) needs an individual assessment.

Known allergic rhinitis or chronic nasal obstruction: start an intranasal corticosteroid (mometasone, fluticasone) 3-5 days before the flight. This reduces mucosal oedema and opens the ostia. An antihistamine (cetirizine, loratadine) can be taken on flight day.

Thirty minutes before take-off, one spray of oxymetazoline in each nostril produces vasoconstriction, shrinks the mucosa, and improves airflow and sinus ventilation. Do not use more than 3 consecutive days — rhinitis medicamentosa is a real risk.

During the flight, drink water, avoid alcohol and excess caffeine. A warm drink or tea (gentle steam) can help. Increase swallowing with chewing gum or sipping water to encourage Eustachian tube opening. Sleep is better placed in the cruise phase, not just before descent — you swallow less when asleep.

Valsalva manoeuvre: pinch the nose, close the mouth and exhale gently. The Eustachian tube opens and middle-ear pressure equalises. Avoid a forceful Valsalva — round-window rupture is a theoretical complication. Gentle, controlled application is correct.

Toynbee manoeuvre: swallow with the nose pinched. A more natural, lower-pressure alternative that can be repeated frequently. Frenzel manoeuvre: pushing the back of the tongue against the soft palate with the glottis closed — common in divers.

These manoeuvres should be repeated frequently early in the descent, 20-30 minutes before the runway is in sight — not waiting until pain appears. For infants, a pacifier, bottle or breastfeeding is the most effective practice; the sucking reflex opens the Eustachian tube. For the related clinical reference, see septum deviation page.

A patient with acute otitis media should avoid flying for at least 1-2 weeks or until a post-treatment check confirms resolution. Persistent middle-ear effusion is still a meaningful risk — tympanic membrane perforation is possible. Wait until your doctor signs a fit-to-fly note.

Acute bacterial sinusitis: fly 7-10 days after antibiotics, once symptoms have fully resolved. Flying within that window can cause acute sinus barotrauma — frontal sinus barotrauma is unexpectedly severe.

Timing of flight after recent middle-ear or sinus surgery should be discussed with your surgeon. Typical waits: 2 weeks after septoplasty, 2-3 weeks after sinus surgery, 6-8 weeks after tympanoplasty. After nose surgery, particularly while a splint is in place and bleeding risk persists, flying is not advised.

Infants travel best in active alert phase. During climb and descent, a pacifier, bottle or breastfeeding is the best Eustachian opener. Waking a sleeping infant on descent may not be ideal; if they start crying that signals discomfort and offering fluid usually helps.

Decongestant sprays are not recommended under age 6. For age-appropriate antihistamine use, get clearance from your paediatrician or ENT specialist. Children with adenoid hypertrophy benefit from a pre-flight examination — chronic obstruction is often the underlying issue.

In pregnancy, hormonal causes increase nasal mucosal oedema — "gestational rhinitis" is common. Short, low-dose oxymetazoline can be used in the first trimester; in the second and third trimesters limit it strictly to 3 days. Among antihistamines, loratadine is generally considered safe in pregnancy.

Mild middle-ear barotrauma (simple ear pain, transient hearing loss) usually resolves on its own within 1-3 days. A nasal decongestant and an oral analgesic are typically sufficient. The tympanic membrane is hyperaemic but intact. Avoid swimming or diving during this period.

Sinus barotrauma presents as severe facial pain, pressure, and sometimes epistaxis. An ENT review is needed. Nasal endoscopy and, if indicated, a paranasal sinus CT are planned. Treatment: nasal decongestant, intranasal steroid, oral analgesia and antibiotics if a concurrent infection is present.

A tympanic perforation is diagnosed on otoscopy. About 80% close spontaneously in 4-6 weeks. During this period: no water in the ear, no thick drops, no flying. Perforations that fail to heal at 3 months are candidates for tympanoplasty. We share patient experiences on our Istanbul ENT services.