A sinus headache feels like a deep, constant pressure behind your eyes, across your cheekbones, in your forehead, or along the bridge of your nose. It’s less of a sharp pain and more of a dull, heavy ache that makes your whole face feel swollen and tender. The sensation typically gets noticeably worse when you bend forward or move your head suddenly, because shifting position changes the pressure inside your inflamed sinus cavities.
Where the Pain Shows Up
Your sinuses are air-filled pockets behind your forehead, cheeks, and the bridge of your nose. When they become inflamed, usually from infection or severe allergies, they swell and fill with fluid. That trapped fluid creates pressure against the walls of the cavities, which is what you feel as pain.
The location of the ache depends on which sinuses are affected. Inflammation in the frontal sinuses (above your eyebrows) produces forehead pressure. Maxillary sinus involvement targets the cheekbones and upper teeth. Ethmoid sinuses, located between your eyes, create pain along the bridge of your nose and behind the eyes. You might feel it in one area or across your entire face at once. The skin over these areas often feels tender to the touch.
What Else Happens Alongside the Pain
A true sinus headache doesn’t show up alone. It comes packaged with signs of a sinus infection or significant inflammation. You’ll typically have thick, discolored mucus draining from your nose (yellow or green rather than clear), a stuffy nose that makes breathing through it difficult, and a reduced sense of smell. Your ears may feel full or plugged.
Fever sometimes accompanies acute sinusitis but is less common with chronic cases. Fatigue is typical, partly because congestion disrupts sleep and partly because your immune system is working hard against the infection. The pain tends to be worst in the morning, after you’ve been lying flat all night and fluid has pooled in your sinuses.
Most “Sinus Headaches” Are Actually Migraines
Here’s the part that surprises most people: the vast majority of self-diagnosed sinus headaches turn out to be migraines. In one study published in the journal Neurology, researchers evaluated patients who described their headaches as sinus-related. Of those 47 patients, 98% actually met the clinical criteria for migraine or migrainous headache.
This happens because migraines can cause facial pressure, nasal congestion, and even a runny nose, which mimics sinus symptoms convincingly. The key differences come down to a few details. A genuine sinus headache almost always involves thick, discolored nasal discharge and starts alongside other signs of infection. A migraine is more likely to involve sensitivity to light or sound, nausea, and pain that pulses or throbs on one side. If you get recurring “sinus headaches” without obvious infection symptoms, there’s a strong chance they’re migraines.
This distinction matters because the treatments are completely different. Decongestants and saline rinses won’t help a migraine, and migraine treatments won’t clear a sinus infection.
How Doctors Confirm It’s Truly Sinus-Related
Current clinical guidelines say acute bacterial sinusitis should be diagnosed when symptoms like thick nasal discharge with congestion and facial pain or pressure last at least 10 days without improvement, or when symptoms initially improve and then worsen again within 10 days (a pattern called “double worsening”). That second scenario is a strong signal that a viral cold has progressed to a bacterial infection.
For chronic sinusitis, where symptoms persist for 12 weeks or longer, doctors confirm the diagnosis by visually checking for inflammation inside the nose using an endoscope or by ordering a CT scan. Imaging isn’t typically needed for a straightforward acute episode.
What Helps and How Long It Lasts
Most sinus headaches resolve as the underlying sinus inflammation clears. For the majority of people with acute sinusitis, this happens without antibiotics within a few days to a couple of weeks. The headache itself often eases once the sinuses start draining again.
In the meantime, saline nasal rinses (using a neti pot or squeeze bottle) help flush out mucus and reduce pressure. Over-the-counter decongestants can shrink swollen nasal passages temporarily, opening the drainage pathways. Applying a warm compress to your face, staying hydrated, and sleeping with your head slightly elevated can also take the edge off.
If symptoms are severe, last longer than 10 days, or follow the double-worsening pattern, that’s when antibiotics may become appropriate. Chronic cases sometimes require longer-term management with nasal corticosteroid sprays or, in persistent situations, a procedure to improve sinus drainage.
Warning Signs That Need Urgent Attention
Rarely, a sinus infection can spread to nearby structures including the eye socket or the brain. Watch for a severe headache that feels distinctly different from your typical sinus pressure, a fever that won’t break, vision changes, confusion, slurred speech, weakness on one side of the body, or persistent vomiting. These symptoms after a sinus infection warrant immediate medical evaluation.