Sinus Headache vs. Migraine: How to Tell the Difference
You feel pressure behind your eyes, your forehead aches, and your nose feels stuffy — so it must be a sinus headache, right? Not necessarily. Research from the Sinus, Allergy, and Migraine Study (SAMS) found that up to 90% of people who believed they had sinus headaches actually met the diagnostic criteria for migraine. That means the vast majority of people treating themselves with OTC sinus medications are spending money on the wrong fix — and staying miserable in the process.
The overlap between sinus headache vs. migraine symptoms is the source of the confusion. Both can cause facial pressure, nasal congestion, and pain that worsens with weather changes. But the causes, treatments, and long-term solutions are very different. Below, we break down what sets these two conditions apart, why the misdiagnosis rate is so high, and when an ENT evaluation can finally give you a clear answer.
What is a sinus headache?
A true sinus headache is caused by sinusitis — inflammation or infection of the sinus cavities that creates a buildup of pressure in the forehead, cheeks, and around the nose. Swollen sinus tissue traps mucus that can't drain properly, and that congestion produces a deep, constant ache. Almost every genuine sinus headache occurs alongside an active sinus infection, whether bacterial or viral.
The pain feels like steady pressure rather than throbbing, and it typically gets worse when you bend forward or lie down. You'll usually notice thick, discolored nasal discharge — yellow or green, not clear — along with a reduced sense of smell and sometimes a low-grade fever. Symptoms often follow a cold or allergy flare-up and tend to worsen over several days before improving with infection treatment.
How common are true sinus headaches?
Less common than most people think. According to the American Migraine Foundation, fewer than 2% of all headaches are actually caused by sinus infections. That statistic surprises many patients, but it explains why so many over-the-counter sinus pressure headache remedies fail to provide lasting relief. If your headaches keep coming back despite using decongestants and sinus rinses, there's a good chance the source of your pain isn't your sinuses at all.
What is a migraine?
Migraine is a neurological condition, not just a bad headache. It involves abnormal brain activity, changes in nerve signaling, and blood vessel shifts that affect the entire nervous system. Migraines tend to run in families and are set off by environmental, hormonal, or lifestyle triggers — everything from weather changes and stress to disrupted sleep and certain foods.
The pain is moderate to severe, usually throbbing or pulsating, and often concentrated on one side of the head. Nausea, vomiting, and sensitivity to light, sound, or smells are hallmarks that separate migraine from other headache types. Some patients experience aura before the pain starts — visual disturbances like flashing lights, blind spots, or zigzag lines. Others notice a prodrome phase hours beforehand: unusual fatigue, mood shifts, or food cravings. A single migraine episode can last anywhere from 4 to 72 hours.
Here's where the confusion with sinus headaches starts. The trigeminal nerve — the same nerve activated during a migraine — also supplies the sinuses. When a migraine fires up that nerve pathway, it can produce nasal congestion and facial pressure that feel identical to sinus headache symptoms.
Sinus headache vs. migraine — key differences at a glance
Knowing how to tell if a headache is sinus or migraine comes down to a handful of distinguishing features. While the two conditions share some overlap, the pattern of symptoms points in different directions.
- Pain type and location. Sinus headaches produce deep, constant pressure across the forehead, cheeks, and bridge of the nose — usually on both sides. Migraine pain is typically throbbing or pulsating and often one-sided, settling in the temples, behind the eyes, or at the back of the head.
- Nasal discharge. This is one of the most reliable clues. A true sinus infection headache produces thick, yellow or green discharge. Migraines may cause nasal congestion, but any discharge is usually clear and watery.
- Fever, nausea, and sensory sensitivity. Low-grade fever is common with sinus headaches and rare with migraines. The reverse is true for nausea, vomiting, and sensitivity to light or sound — those point strongly toward migraine. Visual disturbances like aura occur in roughly 25% of migraine patients and never accompany a sinus headache.
- Duration and recurrence. Sinus headaches follow an infection timeline — days to weeks, worsening before improving with treatment. Migraines cycle in episodes lasting 4 to 72 hours and often recur on a regular pattern. If your headaches behind the eyes come and go on a predictable schedule, that pattern favors migraine over sinusitis.
- Treatment response. Decongestants and antibiotics relieve sinus headaches. They do nothing for migraines. If OTC sinus medications aren't helping, that's a strong signal your headache has a different underlying cause.
When your "sinus headache" might actually be a sinus problem
Not every case is a misdiagnosis. Some patients genuinely do have sinus-driven headaches, and recognizing the signs matters just as much as ruling them out.
Your headache is more likely sinus-related if it started after a cold that won't resolve — 10 or more days of worsening symptoms rather than improving. Thick, discolored nasal drainage (not clear and watery), a low-grade fever, facial tenderness when pressing on your cheeks or forehead, and a noticeable drop in your sense of smell all point toward an active sinus infection. If your symptoms improve with decongestants or antibiotics, that's another strong signal.
Sinus conditions that cause recurring headaches
For patients in Michigan dealing with repeated sinus headaches, there's often an underlying structural or inflammatory issue keeping the cycle going. Chronic sinusitis — ongoing inflammation lasting 12 weeks or more — is one of the most common culprits. A deviated septum can prevent proper sinus drainage, setting the stage for repeated infections. Nasal polyps block sinus openings and trap mucus. Allergic rhinitis, which flares hard during Michigan's high-pollen springs and cold, dry winters, creates chronic inflammation that predisposes you to infection after infection.
When these conditions go unidentified, you end up treating individual headache episodes without ever addressing the reason they keep coming back. An ENT specialist can identify the root cause and, in many cases, end the cycle entirely.
How an ENT specialist can help you get the right diagnosis
If you've been dealing with recurring headaches, facial pressure, or congestion that doesn't respond to OTC treatments, an ENT evaluation takes the guesswork out of the equation. Dr. Ulrich, a Board-Certified Otolaryngologist at Michigan Nose & Sinus Health, uses a targeted diagnostic process to determine exactly what's behind your symptoms.
That process starts with a detailed review of your headache history — how often they occur, how long they last, what triggers them, and which symptoms accompany them. From there, Dr. Ulrich performs a nasal endoscopy — a thin, lighted scope that examines your nasal passages and sinus openings right in the office to check for inflammation, polyps, or structural issues. When indicated, CT imaging provides a precise look at sinus blockages or a deviated septum. Allergy testing can also identify whether allergic rhinitis is fueling chronic sinus inflammation.
Why this matters
If the sinuses look healthy on endoscopy and imaging, the headache is almost certainly not sinus-related — pointing toward migraine or another headache type that requires different treatment. If sinus disease is present, Dr. Ulrich can treat it at the source with medication, allergy management, or minimally invasive procedures like balloon sinuplasty. Either way, you walk out with a clear answer and a path forward instead of another round of decongestants that may not be solving anything.
Treatment approaches — sinus headaches vs. migraines
Once you have a clear diagnosis, treatment can actually target the right condition. The approach looks very different depending on whether your headaches are sinus-driven, migraine-driven, or both.
If it's a true sinus headache
The goal is treating the underlying infection and fixing whatever is causing it to recur. That means antibiotics for bacterial sinusitis, saline irrigation, and nasal steroid sprays to reduce inflammation. For patients with contributing structural issues — a deviated septum, nasal polyps, or chronically blocked drainage pathways — Dr. Ulrich may recommend balloon sinuplasty or endoscopic sinus surgery to restore proper sinus function. Allergy management also plays a role for patients whose sinus inflammation is allergy-driven. Warm compresses and staying well-hydrated help with day-to-day symptom relief while treatment takes effect.
If it's a migraine
Migraine treatment falls into two categories: stopping an active attack and preventing future ones. Triptans and newer migraine-specific medications like gepants and ditans address acute episodes. Preventive options include daily medications, CGRP inhibitors, and Botox for chronic migraine. Trigger management — better sleep habits, stress reduction, dietary changes, and weather awareness — rounds out the plan. A neurologist or headache specialist typically manages ongoing migraine care.
When it's both
Some patients have both chronic sinus disease and migraine, and the two conditions feed each other. Sinus inflammation can trigger migraine attacks in people who are prone to them. In those cases, treating the sinus condition often reduces migraine frequency as well.
Finding answers for your headaches starts here
If you've been dealing with recurring headaches, facial pressure, or congestion that isn't responding to OTC sinus treatments, an ENT evaluation is a smart next step. Whether the cause turns out to be chronic sinusitis, a deviated septum, nasal polyps, or something outside the sinuses altogether, Dr. Ulrich has the diagnostic tools to give you a definitive answer — and the expertise to treat it if sinus disease is the culprit.
Schedule a consultation with Dr. Ulrich at Michigan Nose & Sinus Health in Grand Blanc, MI. Whether your headaches are coming from your sinuses or not, we'll help you find real answers.
Frequently asked questions
Can a sinus infection cause migraines?
Sinus infections don't directly cause migraines, but sinus inflammation can trigger migraine attacks in people who are prone to them. The trigeminal nerve connects both the sinuses and the migraine pathway, so irritation in the sinuses can set off a migraine episode. For patients dealing with both conditions, treating the underlying sinus issue may reduce migraine frequency.
How do I know if my headache is from my sinuses?
A true sinus headache almost always occurs alongside an active sinus infection. Look for thick, discolored nasal discharge, facial tenderness when pressing on your cheeks or forehead, a reduced sense of smell, and a low-grade fever. If you have those symptoms, your headache is likely sinus-related. If you don't — especially if you're experiencing nausea, light sensitivity, or throbbing one-sided pain — it's probably a migraine.
Should I see an ENT or a neurologist for headaches?
If your headaches involve facial pressure, nasal congestion, or recurring sinus infections, start with an ENT like Dr. Ulrich. A nasal endoscopy and imaging can determine whether sinus disease is the cause. If your sinuses are clear, a neurologist or headache specialist is the right next step for migraine management.
Why doesn't my sinus medication work for my headaches?
If OTC sinus medications aren't providing relief, it's a strong sign you're dealing with migraines rather than a true sinus headache. Decongestants and antihistamines won't address the neurological cause of migraine pain. An
ENT evaluation can confirm whether your sinuses are actually involved — and point you toward the right treatment if they're not.










