Yes, going up high can cause sinus problems, though for most people the trouble comes from the fast pressure changes of a flight rather than from the height itself.1PubMed Central. Otitic and Sinus Barotrauma Sinuses that can’t keep up with a quick shift in pressure can become painful and swollen, and sometimes they bleed. Staying at altitude for days brings a quieter problem too: a nose that clears mucus more slowly and feels blocked.2PubMed. Nasal mucociliary transport is impaired at altitude
How Pressure Changes Hurt Your Sinuses
Your sinuses are air-filled spaces in the skull bones, linked to the nose by small openings. When the outside pressure changes, air moves through those openings and keeps the pressure inside balanced with the pressure outside.3PubMed Central. Barosinusitis: Comprehensive review and proposed new classification system If the openings are narrow, swollen, or blocked, the pressure inside can’t catch up. That mismatch can damage the sinus lining, an injury doctors call sinus barotrauma.4PubMed Central. Barosinusitis: Comprehensive review and proposed new classification system Part of why this happens so easily is size. The openings are only a few millimeters wide, so even mild swelling from a cold or allergy can close them almost completely.
Climbing and descending cause different problems. At take-off and during the climb, cabin pressure drops below the pressure inside your sinuses.5PubMed Central. Headache attributed to airplane travel: diagnosis, pathophysiology, and treatment – a systematic review Trapped air expands and presses the lining outward against the bone, which can cause swelling and tears.6PubMed Central. Barosinusitis: Comprehensive review and proposed new classification system On landing, the cabin pressure becomes higher than the pressure in your sinuses.7PubMed Central. Headache attributed to airplane travel: diagnosis, pathophysiology, and treatment – a systematic review Now the trapped air shrinks and pulls on the lining. The result ranges from mild swelling to the lining tearing away from the bone or a pocket of blood forming.8PubMed Central. Barosinusitis: Comprehensive review and proposed new classification system How bad it gets depends on how big and how fast the pressure change is.9PubMed Central. Barosinusitis: Comprehensive review and proposed new classification system
Descent is usually the worse part. Swollen tissue lets air out of a sinus more easily than it lets air back in, so a sinus can seem fine on the climb and still be trapped on the way down. That one-way effect is why someone can fly out with no trouble and get hurt on the return trip if a cold started in between. Pain often spikes in the last 20 to 30 minutes before landing.
A pressurized cabin still counts as altitude. Airline cabins are pressurized to roughly the level of a mountain town, not to sea level, and the cabin pressure still falls during the climb and rises again during descent. Pressure changes much faster in a plane than on a drive or hike up a mountain, and that speed is what strains the sinuses.
When the injury happens on descent, the pain usually arrives suddenly and sharply, often over the forehead or behind an eye, rather than building slowly like an ordinary headache. Swallowing, yawning, or pinching the nose and gently blowing doesn’t relieve it the way it relieves a blocked ear. The pain may fade quickly once the plane is on the ground, or it may linger as soreness and fullness for a day or more.
Who Is Most Likely to Get Sinus Pain When Flying
Swelling of the nasal lining from a cold or hay fever is the main trigger. It can block pressure equalization and lead to tears in the lining, head pain, and nosebleeds.10Aerospace Medicine and Human Performance. Frontal Sinus Barotrauma in an Airliner Passenger with Undiagnosed Allergic Rhinitis In one reported case, a healthy 29-year-old with undiagnosed allergies developed a severe frontal sinus injury on a descent.11PubMed. Frontal Sinus Barotrauma in an Airliner Passenger with Undiagnosed Allergic Rhinitis
Feeling fine at the airport isn’t proof your sinuses are clear. Swelling can be mild enough that you don’t notice it and still narrow the openings. A cold in its first or last day, or allergies set off by dust and dry cabin air, can leave the openings tight with few obvious symptoms. If your nose feels a little stuffy, runs, or itches, treat that as a sign your sinuses may not equalize well.
Nose structure and frequent infections raise the risk as well. A bent nasal wall (a deviated septum) and narrow sinus drainage passages can make equalizing harder.12Sinus, Snoring, Sleep Apnea, Allergy & ENT Doctor Austin Texas. Traveling by Air? Prevent Sinus Pain Before It Starts! Among airline crew, people who caught 3 or more colds a year were much more likely to have sinus pressure injuries.13PubMed. Sinus Barotraumas in Commercial Aircrew Women also reported them more often than men.14PubMed. Sinus Barotraumas in Commercial Aircrew
You can size up your own risk before a trip. A current cold or an active allergy season is the biggest red flag. Past sinus or ear pain on flights suggests it may happen again, and chronic stuffiness on one side can point to a structural narrowing. People with no symptoms and a clear nose are less likely to have trouble, though mild unnoticed swelling can still cause problems.
In one survey of commercial pilots, about 1 in 5 had at least one sinus pressure injury during their careers.15PubMed. Upper respiratory infections and barotraumas in commercial pilots: a retrospective survey In a larger survey of airline crew, 61% of those who answered had experienced it, and about half had taken sick leave for it.16PubMed. Sinus Barotraumas in Commercial Aircrew
What Sinus Barotrauma Feels Like and When to Worry
On flights, the forehead sinuses are the ones most often affected.17Aerospace Medicine and Human Performance. Frontal Sinus Barotrauma in an Airliner Passenger with Undiagnosed Allergic Rhinitis Pain tends to sit above or behind the eyes, sometimes with eye pain and a nosebleed on one side.18PubMed. Frontal Sinus Barotrauma in an Airliner Passenger with Undiagnosed Allergic Rhinitis Congestion and swelling often come along with the pain.19PubMed Central. Otitic and Sinus Barotrauma A small bleed from one nostril soon after descent is a recognized sign that the lining was strained. Gentle pressure on the soft part of the nose while leaning forward usually stops it within several minutes. A bleed that won’t stop, or keeps coming back, is a reason to get seen.
Rarely, nerves are involved. A nerve serving the cheek, upper lip, and side of the nose runs along the cheek sinus and can be squeezed by pressure there.20Journal of Oral and Maxillofacial Surgery / Case Reports (or DergiPark) -> Let’s use journal name if implicit, but text shows “Maxillary Sinus Barotrauma with Infraorbital Nerve Paresthesia After Scuba Diving: A Case Report”. The site is DergiPark. Let’s use DergiPark or the journal context. The prompt says “For a paper, use the JOURNAL NAME…”. The journal isn’t explicitly named other than authors and DergiPark. Let’s use DergiPark.. Maxillary Sinus Barotrauma with Infraorbital Nerve Paresthesia After Scuba Diving: A Case Report Numbness or tingling on one side of the face can follow an injury.21Journal of Oral and Maxillofacial Surgery / Case Reports (or DergiPark) -> Let’s use journal name if implicit, but text shows “Maxillary Sinus Barotrauma with Infraorbital Nerve Paresthesia After Scuba Diving: A Case Report”. The site is DergiPark. Let’s use DergiPark or the journal context. The prompt says “For a paper, use the JOURNAL NAME…”. The journal isn’t explicitly named other than authors and DergiPark. Let’s use DergiPark.. Maxillary Sinus Barotrauma with Infraorbital Nerve Paresthesia After Scuba Diving: A Case Report In one reported diver, the tingling and numbness took 3 months to fully go away.22PubMed Central. Maxillary sinus barotrauma with infraorbital nerve paraesthesia after breath-hold diving Delayed treatment risks lasting nerve damage, so facial numbness needs prompt medical attention.23PubMed Central. Maxillary sinus barotrauma with infraorbital nerve paraesthesia after breath-hold diving
Not every flight headache is a sinus injury. Some headaches on flights are now seen as a separate headache disorder rather than sinus damage.24PubMed. Sherpas, Coca Leaves, and Planes: High Altitude and Airplane Headache Review with a Case of Post-LASIK Myopic Shift A headache without stuffiness, a nosebleed, or a recent cold may have a different cause worth raising with a doctor. See a doctor for severe pain that continues after landing, facial numbness, tingling, or vision changes, bleeding that won’t stop or keeps returning, and fever or thick discolored mucus days later, which suggests infection.
A pressure injury differs from an ordinary sinus infection mainly in timing. It starts during or just after the pressure change, while an infection tends to develop over days. Infection more often brings fever, thick discolored mucus, and a bad taste or smell, usually later on. The two can connect, because a swollen, blocked sinus drains poorly and can become infected afterward, so new symptoms days later deserve attention.
A doctor will ask about the flight, when the pain started, and any recent colds. A scan may be ordered if the pain is severe or unusual. Treatment usually aims to reduce swelling and let the sinus drain.
How to Prevent and Ease Sinus Pain on a Flight
Since swelling from colds and allergies causes most episodes, treating it before the flight is the main defense. During allergy season, keep up regular treatment, such as a steroid nasal spray. Steroid sprays reduce swelling gradually, over days of regular use rather than minutes, so start several days before the trip, not in the departure lounge. A decongestant nasal spray used about 30 minutes before descent can shrink swollen lining. It works fast but briefly, so the two sprays do different jobs and are often used together. Use decongestant sprays only a few days at a time, since longer use can cause rebound stuffiness. If you’re badly blocked and the trip can wait, postponing is reasonable. When using a nasal spray, tilt your head slightly forward, aim the nozzle toward the outer side of each nostril instead of straight up, and sniff gently rather than hard. Gentle sniffing keeps the medicine in the nose, where it can act on the swollen lining near the sinus openings.
During the flight, stay awake for descent so you keep swallowing and yawning. Drink water and use saline spray to keep the nose moist. Don’t blow forcefully against a pinched nose, which can worsen the injury.
Some people should check with a doctor first. Those with high blood pressure or heart problems should ask before using oral decongestants. Anyone with repeated episodes may need a check for structural problems. People on several medicines should confirm there are no interactions.
Staying at High Altitude and a Stuffy Nose
At very high altitude, around 5,300 meters, the time the nose took to clear a test substance went from about 11 minutes to an hour.25PubMed. Nasal mucociliary transport is impaired at altitude This slowdown happened in most people and lasted through 2 weeks there.26PubMed. Nasal mucociliary transport is impaired at altitude In people living at high altitude for 3 months, mucus clearing was still slowed.27PubMed Central. Impact of Nasal Symptoms on the Quality of Life of Fresh Inductees in High Altitude
Mucus normally works like a conveyor, sweeping dust and germs out of the nose, and at altitude that conveyor runs slowly. The result is a nose that feels thick, blocked, or crusty even without a cold.
The lining reacts to the environment as well. At altitude, the nose lining shows signs of irritation and inflammation.28PubMed. Nasal Function Changes at High Altitude Dry, cold air is a likely contributor. Keeping the lining moist with saline or similar nose drops helps prevent crusting, as troops at high altitude are advised.29The Journal of Laryngology & Otology. ENT morbidity at high altitude
On a mountain trip, use saline spray several times a day in the dry air. A humidifier at night helps in cold, dry lodgings, and plenty of fluids help since altitude dries you out. Slowed clearing can let colds settle in, so watch for signs of sinus infection.
How Long Sinus Barotrauma Takes to Heal
A typical mild case shows steady improvement over a few days, with soreness easing each day rather than worsening. Mild swelling usually settles within days once pressure equalizes. Fullness or a stuffy feeling can linger a little longer than the sharp pain. Pain that gets worse after the first day or two, or returns after improving, suggests something more than simple swelling.
Bleeding inside the sinus takes longer. In one severe case, the blood cleared on its own over weeks to months.30PubMed. Frontal Sinus Barotrauma in an Airliner Passenger with Undiagnosed Allergic Rhinitis Blood trapped in a closed sinus has few ways out, so the body has to absorb it slowly, even though the sharp pain fades much sooner. Doctors often watch such cases, and a scan can show whether the blood is shrinking. Among airline crew with these injuries, some needed surgery, usually for repeated problems.31PubMed. Sinus Barotraumas in Commercial Aircrew
While healing, avoid flying or diving until the pain is fully gone. Keep using saline, treat any cold or allergy, and use pain relievers for discomfort. Repeated episodes deserve an ear, nose and throat check.