How do I know if it is a sinus headache or a migraine?

A true sinus headache almost always comes with nasal symptoms such as a blocked or runny nose and thick discharge. If your headache is throbbing, one-sided, comes with nausea or sensitivity to light, and your nose is clear, it is more likely a migraine, which needs different treatment.

Why are my sinus headaches worse in Singapore?

High humidity, frequent colds, air-conditioning and a heavy indoor allergen load such as dust mites all keep the nasal lining irritated and prone to congestion. Controlling allergies and using saline rinses can reduce how often sinus headaches occur.

Can a decongestant spray make things worse?

Decongestant nasal sprays give quick relief but should only be used for a few days. Using them longer can cause rebound congestion, where the nose becomes more blocked once the spray wears off, making the problem worse. Saline and steroid sprays are safer for longer use.

When is a sinus headache an emergency?

Seek urgent care if facial or sinus pain comes with swelling or redness around the eye, vision changes, a high fever with severe headache, neck stiffness or confusion. These can signal a serious infection spreading near the eye or brain and need immediate assessment.

Sinus Headache in Singapore: Causes & Relief

Q: Do I need antibiotics for a sinus headache?

Usually not. Most sinus inflammation is caused by viruses or allergies, which do not respond to antibiotics. Antibiotics are reserved for cases where a bacterial infection is likely, such as symptoms that worsen after several days or persist beyond about ten days, and should be prescribed by a doctor.

Written & reviewed by the BestDoctors.sg editorial team · Last updated 3 Sep 2026 · General information, not medical advice

Quick answer. A sinus headache is facial pain and pressure caused by inflamed or congested sinuses, usually alongside a blocked or runny nose. Many headaches blamed on sinuses are actually migraines, so persistent or severe cases should be assessed, and fever with eye swelling or vision change needs urgent care.

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In a medical emergency, or for severe or sudden symptoms such as breathing difficulty, chest pain, fainting or stroke signs, call 995 immediately.

A sinus headache is one of the most common complaints linked to the nose, and in Singapore’s humid climate, where colds, allergies and sinusitis are frequent, that heavy, pressing pain across the forehead and cheeks is familiar to many people. A true sinus headache comes from inflamed or congested sinuses and almost always travels with other nasal symptoms such as a blocked nose, thick discharge or a reduced sense of smell.

What surprises many people is how often a headache blamed on the sinuses turns out to be a migraine, because the two can feel similar. This guide explains what a sinus headache really is, what causes it, how it is told apart from other headaches, how it is treated and the warning signs that mean you should seek care quickly rather than reaching for another decongestant.

At a glance

Sinus headache versus migraine – common distinguishing features
Feature	Sinus headache	Migraine
Nasal symptoms	Blocked nose, thick discharge usual	Usually clear nose or watery eyes only
Location of pain	Forehead, cheeks, around eyes	Often one-sided, throbbing
Triggers	Cold, sinus infection, allergy flare	Light, sound, stress, certain foods
Associated features	Fever may be present, reduced smell	Nausea, sensitivity to light and sound
Response to decongestant	Often eases with congestion relief	Little effect; needs migraine treatment

What is a sinus headache?

A sinus headache is pain and pressure felt over the face – typically the forehead, the bridge of the nose, the cheeks or around the eyes – caused by inflammation or congestion in the sinuses. The sinuses are air-filled spaces in the bones of the face; when their lining swells and they cannot drain properly, pressure builds and is felt as a headache.

True sinus headaches are part of sinusitis and come with other nasal symptoms. Headaches that occur without any nasal congestion are usually a different type of headache, most often migraine or tension headache, even if the pain sits over the sinus area. This distinction matters because the treatments are quite different.

Symptoms & signs

A genuine sinus headache rarely comes alone. Typical features include:

A dull, constant pressure or ache across the forehead, cheeks or around the eyes
Pain that worsens when you bend forward or lie down
A blocked or runny nose, often with thick yellow or green discharge
A reduced sense of smell and taste
Post-nasal drip and a feeling of fullness in the face or ears
Sometimes a mild fever and general tiredness

If a headache has none of these nasal features, a sinus cause is unlikely and another type of headache should be considered.

Causes & risk factors

Sinus headaches stem from anything that inflames or blocks the sinuses, preventing normal drainage:

Sinusitis – viral, allergic or bacterial inflammation of the sinuses, the most common cause
Allergic rhinitis – very common in Singapore due to dust mites and indoor allergens
Colds and upper respiratory infections that congest the nasal lining
Nasal polyps or a deviated septum that impair drainage
Air-conditioning and sudden temperature changes that can aggravate the nasal lining

People with allergies, asthma or recurrent sinus infections are more prone to these headaches.

How a sinus headache is diagnosed

Diagnosis is mainly clinical, focused on confirming that the sinuses are genuinely the source and excluding other headaches. A doctor may:

Ask about the pattern of pain, nasal symptoms, allergies and how long it has lasted
Examine the nose, including a nasal endoscopy by an ENT to look directly at the sinuses and drainage areas
Arrange a CT scan of the sinuses if symptoms are recurrent, severe or not responding
Consider allergy testing where an allergic trigger is suspected

If nasal examination is normal and there are no congestion symptoms, the doctor will usually look for a migraine or other headache cause instead.

Treatment options

Treatment targets both the headache and the underlying sinus problem:

Saline nasal rinses or sprays to clear mucus and ease congestion
Decongestants for short-term relief – sprays should not be used for more than a few days to avoid rebound congestion
Steroid nasal sprays to reduce lining inflammation, useful in allergy-related cases
Simple pain relief such as paracetamol
Antibiotics only when a bacterial sinus infection is likely – many cases are viral and do not need them
Treating the underlying cause – allergy control, or surgery for polyps or a blocked drainage pathway in recurrent cases

If symptoms turn out to be migraine, migraine-specific treatment works far better than decongestants.

When to see a doctor & which specialist

See a doctor if facial pain and congestion last more than about ten days, keep coming back, or are not helped by simple measures. Seek care more urgently, and treat as an emergency by calling 995 or going to A&E, if a sinus problem is accompanied by:

Swelling, redness or pain around the eye, or the eye being pushed forward
Double vision, blurred vision or any change in eyesight
A high fever with a severe headache, neck stiffness or confusion
The worst headache of your life or a sudden, very severe headache

For recurrent or persistent sinus headaches, an ear, nose and throat specialist can examine the sinuses and treat the cause. See the best ENT specialists in Singapore directory.

Self-care and relief at home

Many sinus headaches linked to congestion ease with simple measures aimed at clearing the nose and reducing inflammation:

Use saline nasal rinses or sprays to flush out mucus and ease pressure.
Try a warm compress over the cheeks and forehead for comfort.
Stay well hydrated and rest, especially if a cold is the trigger.
Limit decongestant nasal sprays to a few days only, to avoid rebound congestion.
Manage allergies by reducing dust-mite exposure at home, a common trigger in Singapore.

How to tell it apart from a migraine

Because many headaches blamed on the sinuses are actually migraines, it is worth keeping a short diary of your headaches, noting any nasal blockage, discharge, sensitivity to light or sound, and what helps. A genuine sinus headache almost always comes with clear nasal symptoms and a reduced sense of smell. If your headaches keep returning without a blocked nose, or do not respond to decongestants, mention this to your doctor, as migraine-specific treatment may help far more.

Common questions

Do I need antibiotics for a sinus headache?

Often not. Many cases of sinusitis are viral or allergic and settle with saline rinses, decongestants and time. Antibiotics are only useful when a bacterial infection is likely.

When should I see an ENT specialist?

Consider an ENT review if facial pain and congestion keep coming back, last more than about ten days, or are not helped by simple measures, as they can examine the sinuses and treat the underlying cause.

Related guides

Sources

Last updated 23 June 2026. Prices are typical market ranges gathered from the cited sources and vary by clinic, doctor and individual case — they are not quotes. This guide is general information, not medical advice; always consult a qualified, MOH-accredited doctor before any treatment.

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