A sinus infection typically feels like deep, aching pressure across your face, especially around your eyes, cheekbones, forehead, and the bridge of your nose. Unlike a surface-level headache, the sensation sits behind the bones of your face and often worsens when you bend forward or lie down. Beyond the pressure, most people also feel genuinely unwell: fatigued, congested, and foggy in a way that makes it hard to push through a normal day.
Where the Pressure and Pain Show Up
The hallmark of a sinus infection is facial pressure that feels like tightness or soreness concentrated in specific zones. You’ll most commonly feel it around your eyes, across your cheekbones, in your forehead and temples, and along the bridge of your nose. The pain can also radiate outward to your scalp, your upper jaw, and your teeth. Many people describe it as a dull, constant ache rather than a sharp or throbbing pain.
The location of the pressure depends on which sinuses are inflamed. Infection in the sinuses behind your cheekbones produces a heavy feeling across the middle of your face. When the frontal sinuses above your eyebrows are involved, the pressure concentrates in your forehead and can feel like a tight band. Inflammation in the sinuses between your eyes creates a deep ache at the bridge of your nose.
Why Your Teeth Might Hurt
One of the more confusing symptoms is upper tooth pain. The roots of your upper molars sit remarkably close to the floor of your maxillary sinuses, with the second molars being the nearest. When those sinuses swell, the pressure pushes directly against those roots. The result is a dull ache in your upper back teeth that can feel identical to a dental problem. If the pain spans several upper teeth rather than one specific tooth, and it showed up alongside congestion, your sinuses are the more likely culprit.
Congestion, Discharge, and Lost Smell
Nasal congestion during a sinus infection goes beyond a stuffy nose from a cold. The swelling inside your nasal passages can feel like a physical blockage, making it difficult or impossible to breathe through one or both nostrils. You’ll likely notice thick nasal discharge draining from the front of your nose or sliding down the back of your throat (postnasal drip), which can trigger a persistent cough that tends to get worse at night.
You may have heard that green or yellow mucus means you have a bacterial infection. Research does not support this. A systematic review found that the color of nasal discharge is not a reliable way to distinguish a bacterial sinus infection from a viral one. Both viral and bacterial infections can produce discolored mucus, and clear discharge doesn’t rule out a bacterial cause.
Loss of smell is extremely common and often underestimated. Up to 78% of people with chronic sinus inflammation experience some degree of reduced smell, and the number climbs to 94% in people who also have nasal polyps. The congestion physically blocks odor molecules from reaching the smell receptors high in your nasal cavity. Because your sense of smell drives most of what you perceive as flavor, food often tastes bland or muted during a sinus infection. This is technically a smell problem, not a taste problem, though it rarely feels that way when you’re eating.
How It Affects Your Whole Body
A sinus infection isn’t just a face problem. Most people experience noticeable fatigue, a general sense of weakness, and a low-grade fever (more common with acute infections than chronic ones). Bad breath is another frequent complaint, caused by bacteria-laden mucus draining into the back of the throat. The combination of poor sleep from congestion, constant postnasal drip irritating your throat, and the body’s inflammatory response leaves many people feeling wiped out in a way that seems disproportionate to “just a sinus thing.”
Acute vs. Chronic: Two Different Experiences
The timeline of your symptoms places your infection into one of several categories. Acute sinusitis lasts less than 4 weeks and is usually triggered by a viral infection like the common cold. Subacute sinusitis persists between 4 and 12 weeks. Chronic sinusitis lasts longer than 12 weeks without a symptom-free period. Recurrent sinusitis involves four or more acute episodes per year with complete resolution between them.
These categories aren’t just medical labels. They describe genuinely different experiences. Acute sinusitis tends to hit harder: sharper facial pain, fever, and thick discolored discharge that arrives fast and peaks within a week or two. Chronic sinusitis feels more like a low-grade version that never fully clears. The pain shifts from sharp pressure to a persistent dull heaviness. Congestion becomes the dominant symptom, often accompanied by a reduced sense of smell that lingers for months. The fatigue of chronic sinusitis is less about fighting an active infection and more about the cumulative drain of never breathing or sleeping well.
Sinus Pressure vs. Migraine
Many people who believe they have recurring sinus headaches actually have migraines. This isn’t a rare mix-up. Research has consistently found that a high proportion of patients diagnosed with “sinus headaches” actually meet the diagnostic criteria for migraine when evaluated by a specialist. The confusion happens because migraines frequently cause nasal congestion, watery eyes, and facial pressure, symptoms that feel sinus-related.
A few differences can help you sort this out. Migraine pain is often one-sided, pulsating, and accompanied by sensitivity to light or sound, nausea, or visual disturbances. True sinus infection pain is bilateral (both sides of your face), feels like constant pressure rather than pulsing, and comes with thick nasal discharge, reduced smell, and sometimes fever. If you get recurrent “sinus headaches” without significant congestion or discharge, and over-the-counter decongestants don’t help much, the problem may be migraines worth discussing with a doctor.
How It Shows Up Differently in Children
Children with sinus infections don’t typically complain of facial pressure the way adults do. Instead, the most common signs are persistent nasal discharge of any color or consistency and a daytime cough that often worsens at night. In adults, the classic presentation centers on headache, fever, and facial pain. In children, especially younger ones, it centers on a cold that just won’t quit: nasal symptoms lasting more than 10 days without improvement, or symptoms that seem to get better and then suddenly worsen. A cough that lingers well past a typical cold, particularly one that disrupts sleep, is a more telling sign in kids than facial pain.
When Symptoms Signal Something Serious
Most sinus infections resolve on their own or with straightforward treatment, but a small number develop complications that need urgent attention. Seek immediate care if you notice swelling or redness around an eye, vision changes like double vision or difficulty moving your eye, a severe headache that feels different from sinus pressure, a high fever that doesn’t respond to treatment, or a stiff neck alongside your other symptoms. These can indicate the infection has spread beyond the sinuses into the eye socket or toward the brain, both of which are medical emergencies.