Sinus infection treatment: What works, what doesn't and when to see a doctor

You wake up with facial pressure, a stuffy nose and thick nasal drainage. Is this just a cold? Or is it a sinus infection?

Sinus infections are incredibly common—about one in seven people experience sinusitis (the more clinical name for a sinus infection) each year, totaling more than 30 million cases. If you're dealing with sinus symptoms right now, you're probably looking for clear answers: Can you treat this at home? How long should you wait before seeing a doctor? And do you actually need antibiotics?

Here's what you need to know about sinus infection treatment and when it's time to seek care.

What is a sinus infection?

Sinusitis, or sinus infection, happens when the air-filled pockets in the bone around your nose become infected—often following a cold. When these spaces fill with pus and mucus and can't drain properly, you end up with a sinus infection.

The symptoms you're likely experiencing include:

• Colored nasal drainage (yellow or green)
• Facial pain or pressure, especially around your nose, forehead or cheeks
• Nasal blockage or congestion
• Reduced sense of smell
• Headache or tooth pain (you may even be wondering, do I have a migraine or just a sinus headache?)

But not all sinus infections are the same.

Types of sinus infections

Understanding the different types of sinus infections may help point you in the direction of what treatment is right for you.

Acute sinusitis (short-term)

Acute sinusitis is diagnosed when you have colored nasal drainage, facial pain or pressure, and nasal blockage lasting up to four weeks.

Viral acute sinusitis is the most common type. In fact, most acute sinus infections are caused by viruses, which cannot be treated with antibiotics. Only 0.5 to 2% of acute sinus infections turn into bacterial infections. That means the vast majority of acute sinus infections do not need antibiotics.

If you've had sinusitis symptoms for fewer than 10 days and you're not getting worse, you probably have viral acute sinusitis.

Bacterial acute sinusitis is less common but can develop when symptoms fail to improve at all after 10 days, or when you start to feel better and then get worse again. Even if you do have a bacterial sinus infection, you may not need antibiotics. Most people with acute bacterial sinus infections feel better within seven days, and about 90% are fully recovered or improved by 15 days—even without antibiotics.

Chronic sinusitis (long-term)

Chronic sinusitis occurs when the lining of your sinuses stays inflamed for many months or longer. Chronic sinusitis is often from inflammation that is not related to infection. This type can result from several different forms of inflammation and sometimes leads to nasal polyps—growths that develop in your sinuses or nasal passages when they're inflamed.

If you've been living with sinus symptoms for more than 12 weeks, you may have chronic sinusitis and could benefit from seeing an ear, nose and throat (ENT) specialist. An ENT can perform a CT scan of your sinuses, which is one of the best ways to diagnose chronic sinusitis and rule out other conditions with similar symptoms, like migraines.

Are sinus infections contagious?

Wondering if sinus infections are contagious? Ultimately, this depends on what's causing your sinus infection.

Viral sinus infections can be contagious because the underlying cold virus that triggered the infection can spread to others. However, you're spreading the cold virus, not the sinus infection itself. The person you pass the virus to may develop a cold but won't necessarily develop a sinus infection.

Bacterial sinus infections are generally not contagious. These develop when bacteria that normally live in your nose and sinuses overgrow due to blockage and inflammation—they're not typically passed from person to person.

Chronic sinus infections are not contagious. These result from ongoing inflammation rather than an infectious agent that can spread.

If you have sinus infection symptoms, it's still a good idea to practice good hygiene: wash your hands frequently, cover your coughs and sneezes, and avoid close contact with others until you're feeling better.

Sinus infection treatment: Do you need antibiotics for a sinus infection?

Since most sinus infections are viral, antibiotics won't help—they only work against bacterial infections. Waiting is often the best approach. Before rushing to get antibiotics, try these five over-the-counter treatments that can effectively relieve your symptoms:

1. Pain and fever relief: Acetaminophen and ibuprofen can help reduce facial pain, headache and fever associated with sinus infections.
2. Saline irrigations or rinses: Nasal saline rinses are one of the most effective at-home treatments. They help flush out thick mucus, reduce congestion, and relieve symptoms. You can use a neti pot, squeeze bottle or saline nasal spray.
3. Steroid nasal sprays: Over-the-counter steroid sprays like fluticasone can reduce inflammation and symptoms, though it may take up to 15 days to notice improvement. Be aware that these can occasionally cause nosebleeds.
4. Decongestants: Oral decongestants like pseudoephedrine or nasal decongestant sprays like oxymetazoline can help with congestion. Important note: Don't use decongestant nasal sprays for more than three days in a row, as prolonged use can lead to rebound congestion (long-term nasal stuffiness caused by dependency on the spray). People with high blood pressure should talk to their doctor before using decongestants, because they can make high blood pressure worse. Over the counter pills and elixirs containing phenylephrine (PE) are not effective and should be avoided.
5. Rest and hydration: Give your body time to heal by getting adequate rest and drinking plenty of fluids to help thin mucus.

Most sinus infections are viral and will improve on their own within 7 to 10 days with supportive care. If your symptoms persist beyond 10 days, worsen after initial improvement or become severe, it's time to seek medical care.

Even when a sinus infection is bacterial, your body can often clear it on its own, and taking unnecessary antibiotics can have serious side effects, including:

• Digestive issues like diarrhea and nausea
• Allergic reactions
• Antibiotic resistance, making future infections harder to treat
• Disruption of healthy bacteria in your body

Even after 10 days, current recommendations encourage watchful waiting for most people since only 1 out of 19 people with bacterial sinus infections get better faster with an antibiotic, but 1 out of 8 people taking the antibiotic have a problem related to the antibiotic medicine. 

The toughest (but often best) treatment for a sinus infection is simply giving it time while managing your symptoms with the over-the-counter options listed above.

When should you see a doctor for a sinus infection?

If you’ve done everything you can, and the infection is simply not improving on its own, you should seek medical care. Contact your doctor if you have:

• Symptoms lasting more than 10 days without improvement
• Symptoms that improve and then worsen again (this may indicate a bacterial infection)
• Severe symptoms including high fever (above 102°F), severe headache or facial swelling
• Vision changes or eye swelling
• Severe pain that doesn't respond to over-the-counter pain relievers
• Symptoms that keep recurring or last longer than 12 weeks (chronic sinusitis)
• Confusion or stiff neck (seek immediate care for these symptoms)

If you're unsure about the severity of your symptoms, you can connect with a healthcare provider from home through virtual care. This is a great option for getting guidance on whether your symptoms need further evaluation or if you can continue managing them at home.

For severe symptoms or concerns outside of regular office hours, urgent care can provide evaluation and treatment.

With cold and flu season, it is often about being prepared and staving off infections before they happen. Learn more about protecting yourself from flu and other respiratory illnesses or find a doctor near you.