Quick Answer: A common cold usually lasts about 2 to 3 days and improves within a week. A sinus infection (sinusitis) can cause facial pain or pressure, a blocked nose, thick yellow or green mucus, and a headache and often lasts longer. See a doctor if symptoms last more than 10 days without improving, get better and then get worse, come with a fever for more than 3 to 4 days, or cause severe facial pain or headache. Most sinus infections clear without antibiotics.
Sinus problems that keep coming back?
Allergies are a common trigger. Book a comprehensive allergy panel at home, with home sample collection and a digital report.
Book Allergy Test at Home →What Is a Common Cold?
A common cold is a viral infection of the nose and throat. More than 200 viruses can cause it, and rhinoviruses are the most common. It spreads through droplets from coughs and sneezes, close contact, and touching contaminated surfaces.
Cold symptoms include a runny or stuffy nose, sneezing, sore throat, cough, mild headache, body aches and sometimes a low-grade fever. Symptoms usually peak within 2 to 3 days and improve within about a week. Antibiotics don't work on colds because colds are caused by viruses.
If you are unsure whether you have a cold, flu or COVID-19, read our guide on cold vs flu vs COVID symptoms.
What Is a Sinus Infection (Sinusitis)?
Your sinuses are air-filled spaces behind your forehead, cheeks, nose, and eyes. Normally, mucus drains from them into the nose. In sinusitis, the sinus lining swells, blocking drainage and causing mucus to build up. Germs can then grow in the trapped fluid.
Most sinus infections are caused by viruses, often starting with a cold. Some are caused by bacteria. That is why a sinus infection often feels like a cold that won't go away.
Types of Sinusitis
Doctors group sinusitis by how long it lasts and how often it comes back.
1. Acute sinusitis: This is the most common type. It usually starts with a cold, when the sinus lining swells and mucus gets trapped. Symptoms include a blocked nose, facial pain or pressure, thick yellow or green mucus and headache. Most cases improve within 7 to 10 days and clear up within 4 weeks, often with just home care.
2. Subacute sinusitis: Symptoms last longer than acute sinusitis, for about 1 to 3 months. It often happens when an acute infection doesn’t fully clear. The symptoms are similar to acute sinusitis but tend to linger, so it’s worth seeing a doctor at this stage.
3. Chronic sinusitis: Symptoms last more than 12 weeks, even with treatment. They are often milder than acute sinusitis but don’t go away, with a constantly blocked nose, post-nasal drip, facial fullness and a reduced sense of smell. Allergies, nasal polyps or a deviated nasal septum often play a part, and an ENT specialist usually manages it.
4. Recurrent sinusitis: This means having several separate sinus infections in a year, with symptoms clearing fully in between. Repeated infections may point to an underlying problem, such as allergies or a blockage in the nose, so ask your doctor to look for the cause.
Sinus Infection Symptoms
The most common sinus infection symptoms are:
- Pain, pressure, or fullness around the eyes, cheeks, nose or forehead, often worse when you bend forward
- Blocked or stuffy nose that makes breathing through the nose hard
- Thick yellow or green mucus from the nose, or dripping down the back of the throat (post-nasal drip)
- Headache
- Reduced sense of smell or taste
- Cough, often worse at night
- Ear pressure or aching upper teeth
- Bad breath, sore throat, and tiredness
- Fever, in some people
Note: Green or yellow mucus on its own doesn't prove a bacterial infection. The pattern and duration of symptoms matter more.
Symptoms of Sinus Infection in Children
In children, watch for a cold that improves and then gets worse, a high fever with dark nasal discharge for at least 3 days, or nasal discharge, with or without cough, that lasts more than 10 days without improving.
Difference between sinusitis and Cold
Both start in the nose, and both can cause a blocked nose and headache. The table shows how they usually differ.
| Feature | Common cold | Sinus infection |
|---|---|---|
| Main cause | Viruses | Mostly viruses, sometimes bacteria |
| Facial pain or pressure | Rare or mild | Common, worse on bending forward |
| Mucus | Clear or slightly cloudy | Often thick, yellow or green |
| Sneezing and sore throat | Common, especially early | Less prominent |
| Sense of smell | Mildly reduced | Often noticeably reduced |
| Fever | Low-grade, if any | Can occur, sometimes higher |
| Peak of symptoms | Days 2 to 3 | Often after day 5, or worsens later |
| Duration | Usually under a week | 7 to 10 days or longer |
| Antibiotics needed? | No | Usually not; sometimes if bacterial |
The simplest rule: a cold slowly gets better each day. A sinus infection either lingers beyond 10 days, or improves and then suddenly gets worse.
Sinus Headache vs Migraine
Many people who think they have a "sinus headache" actually have migraine. In fact, about 90 percent of self-diagnosed sinus headaches turn out to be migraine attacks. Migraine can cause a blocked or runny nose and pressure around the eyes, which makes the confusion easy.
| Clue | Sinus infection headache | Migraine |
|---|---|---|
| Nasal symptoms | Thick, discoloured mucus, blocked nose | Sometimes a clear runny nose |
| Fever | Can be present | Not a feature |
| Nausea, light or sound sensitivity | Uncommon | Common |
| Pattern | Linked to a cold or infection | Repeats in episodes, often with triggers |
| Smell | Often reduced | Usually normal |
If your "sinus headaches" keep coming back without fever or thick mucus, or they don't settle within a week after an infection clears, ask your doctor about migraine. The treatment is very different.
What Causes Sinus Infections?
- A recent cold or other viral infection, the most common trigger
- Allergies, such as hay fever or dust and pollen allergies
- Smoke and air pollution, including cigarette smoke, second-hand smoke and polluted city air
- Structural problems in the nose, such as a deviated nasal septum or nasal polyps
- A weak immune system, or medicines that suppress immunity
- Conditions such as cystic fibrosis
In India, dust, winter smog and seasonal allergies can keep the nasal lining inflamed for long periods, which is why some people get sinus problems again and again. If you often fall sick, our immunity test page explains the checks that can help.
When to See a Doctor
Most colds and many sinus infections get better on their own. See a doctor if you have:
- Symptoms lasting more than 10 days without improvement
- Symptoms that get better and then worse again
- A fever lasting more than 3 to 4 days
- Severe headache or facial pain not eased by common pain relievers
- Several sinus infections in the past year
- Symptoms that continue after finishing a course of antibiotics
Go to Emergency Care If You Notice
- Swelling, redness or pain around the eyes
- Double vision or any change in vision
- High fever, confusion or unusual drowsiness
- A stiff neck or severe headache
These signs are rare, but they can mean the infection is spreading beyond the sinuses.
Who Is More Likely to Get Chronic Sinusitis?
Long-term sinus trouble is more common when the nose already struggles to drain. You may be at higher risk if:
- Allergies such as hay fever. Dust, pollen or pet allergies keep the nose lining irritated and puffy
- Nasal polyps. These small, harmless swellings can plug the sinus openings
- Bent nasal septum. When the wall between your nostrils leans to one side, one passage narrows and mucus can’t drain well
- You have asthma, particularly if you also have nasal polyps
- Aspirin triggers a reaction. In some people, it goes hand in hand with polyps and a swollen nasal lining
- You have a tooth or gum infection in the upper jaw, since the roots of these teeth sit close to the sinuses
- Low immunity may be due to conditions like HIV or cancer treatment
- Cystic fibrosis, an inherited condition that makes mucus thick and sticky
- Living in a polluted region: You often breathe in smoke or polluted air, from cigarettes or smog
How Sinus Infections Are Diagnosed
Doctors diagnose most sinus infections based on your symptoms and a simple examination. The doctor asks some of the questions, like how long you have been unwell, looks inside your nose, and checks for tenderness over the sinuses. Further tests are usually needed only for long-lasting, repeated, or severe cases:
- Nasal endoscopy: a thin, lighted tube is passed into the nose to look at the sinus openings
- CT scan: the main imaging test for chronic or complicated sinusitis. Plain X-rays are not very useful
- MRI: used occasionally, for example if a fungal infection or growth is suspected
- Allergy tests: if allergies seem to be driving repeated infections
- Nasal or sinus samples: rarely, if treatment isn't working
Treatment for Sinus Infection
Acute Sinusitis
Many sinus infections improve without antibiotics. Antibiotics don't help viral infections and can cause side effects. Your doctor may suggest watchful waiting, which means waiting 2 to 3 days to see if you improve, or a delayed prescription, filled only if you don't get better.
Treatment usually focuses on easing symptoms with saline nasal sprays or rinses, a short course of decongestant sprays, steroid nasal sprays and pain relievers. Antibiotics are considered when a bacterial infection is likely, for example with severe or long-lasting symptoms or high fever.
Chronic Sinusitis
Chronic sinusitis lasts more than 12 weeks and usually requires a longer-term plan with an ENT specialist. Options include:
- Regular saline rinses to clear mucus and allergens
- Steroid nasal sprays to reduce swelling of the lining
- Steroid tablets or injections for severe symptoms, especially with nasal polyps, used for short periods
- Allergy treatment, including allergy medicines or allergy shots (immunotherapy)
- Antibiotics only when a bacterial infection is suspected
- Biologic injections for some people with nasal polyps
- Endoscopic sinus surgery when other treatments don't work, to open blocked drainage pathways
Tips to Manage Sinus Infection at Home
These simple steps can ease symptoms for both colds and sinus infections. They don't replace medical care when you need it.
- Steam inhalation: breathe steam from a bowl of hot water with a towel over your head, or take a hot shower
- Warm compress: place a warm, damp cloth over your nose, cheeks and forehead to ease pressure
- Saline rinses or sprays: flush the nose with a saline solution using a squeeze bottle or neti pot. Use boiled and cooled, or sterile, water only
- Plenty of fluids: water, warm soups and herbal teas help thin mucus
- Rest: give your body time to recover
- Humidifier: moist air helps in dry winter rooms. Clean it regularly to prevent mould
- Sleep with your head raised to help mucus drain
A word of caution: don't use over-the-counter decongestant nasal sprays for more than 3 to 5 days, as they can make congestion worse. Don't give cough and cold medicines to children under 4 unless a doctor advises, and never give aspirin to children.
How to prevent from Sinus Infections
- Wash your hands often, especially during the cold season
- Stay up to date with flu and other recommended vaccines
- Avoid close contact with people who have colds
- Don't smoke and avoid secondhand smoke
- Manage allergies with your doctor's help
- Wear a mask on high-pollution days and keep indoor air clean
- Keep humidifiers and air coolers clean to prevent mould
Doctor at Home for Sinus Problems
When your head is pounding and your nose is blocked, travelling to a clinic and waiting in a queue is the last thing you want, especially for children and older parents. With a doctor visit at home from MAX@Home, a qualified doctor can examine you at home, determine whether it's a cold or a sinus infection, recommend medicines and home care, and refer you to an ENT specialist if you need further tests or treatment.
Book Doctor Visit at Home →People Also Ask
What are the common symptoms of a sinus infection?
Common sinus infection symptoms include facial pain or pressure, a blocked nose, thick yellow or green mucus, post-nasal drip, headache, reduced smell, cough, bad breath and sometimes fever. Pain often gets worse when you bend forward. Symptoms lasting beyond 10 days point to sinusitis rather than a cold.
What is the difference between sinusitis and a cold?
A cold is a viral infection of the nose and throat that usually improves within a week. Sinusitis is swelling and infection of the sinuses, with facial pressure, thick mucus and reduced smell, and it often lasts longer or gets worse after first improving. Both are usually viral.
How long does a sinus infection last?
Acute sinus infections usually improve within 7 to 10 days and last no more than 4 weeks. If symptoms continue for more than 12 weeks, it becomes chronic sinusitis. See a doctor if symptoms last over 10 days without improving or keep coming back.
What are the best home remedies for a sinus infection?
Steam inhalation, warm compresses on the face, saline nasal rinses or sprays, plenty of fluids, rest and sleeping with your head raised can all ease symptoms. Use only boiled and cooled or sterile water for rinses, and avoid decongestant sprays for more than 3 to 5 days.
How can I tell a sinus headache from a migraine?
A sinus infection headache usually comes with a blocked nose, thick discoloured mucus and sometimes fever. Migraine often brings nausea and sensitivity to light or sound, and repeats in episodes. Most self-diagnosed sinus headaches are actually migraine, so see a doctor if they keep returning.
How is chronic sinusitis treated?
Treatment for chronic sinusitis includes regular saline rinses, steroid nasal sprays, allergy treatment and sometimes short courses of steroid tablets or antibiotics. People with nasal polyps may need biologic injections. Endoscopic sinus surgery is considered when other treatments don't work. An ENT specialist usually plans long-term care.
Do I need antibiotics for a sinus infection?
Usually not. Most sinus infections are viral and resolve on their own. Doctors may wait 2 to 3 days before prescribing antibiotics, and use them only when a bacterial infection is likely, such as with severe, long-lasting or worsening symptoms or high fever.
Can I get a doctor at home for a sinus infection in India?
Yes. Home healthcare services like MAX@Home offer doctor visits at home, where a doctor can examine you, tell whether it is a cold or sinusitis, advise on treatment and refer you to an ENT specialist if needed. This helps children, older adults and anyone too unwell to travel.
Conclusion
A cold and a sinus infection may show common symptoms first, but as they progress, the details tell the difference. A cold slowly fades within a week. A sinus infection causes facial pressure, thick mucus and a heavy head, and it lingers beyond 10 days or worsens after seeming to improve. Most cases get better with rest, fluids, steam and saline, without antibiotics.
If your symptoms drag on, keep coming back, or come with severe pain, high fever or eye swelling, don't wait it out. Get checked by a doctor.
Related
References
1. Centers for Disease Control and Prevention. Sinus infection basics: https://www.cdc.gov/sinus-infection/about/index.html
2. Centers for Disease Control and Prevention. About common cold: https://www.cdc.gov/common-cold/about/index.html
3. MedlinePlus (National Library of Medicine). Sinusitis: https://medlineplus.gov/ency/article/000647.htm
4. Mayo Clinic. Acute sinusitis, symptoms and causes: https://www.mayoclinic.org/diseases-conditions/acute-sinusitis/symptoms-causes/syc-20351671
5. Mayo Clinic. Chronic sinusitis, diagnosis and treatment: https://www.mayoclinic.org/diseases-conditions/chronic-sinusitis/diagnosis-treatment/drc-20351667
6. American Migraine Foundation. Sinus headache: https://americanmigrainefoundation.org/resource-library/sinus-headache/
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