Most sinus infections are caused by viruses and will clear up on their own within five to seven days with proper self-care. The key is managing your symptoms, knowing which remedies actually help, and recognizing the signs that you need medical treatment. Here’s how to take care of a sinus infection from start to finish.
Figure Out What You’re Dealing With
The first thing most people want to know is whether their sinus infection is viral or bacterial, because that determines whether antibiotics will help. Unfortunately, symptoms like green or yellow mucus, facial pain, headache, and even fever can show up with both types. Even your doctor can’t tell the difference based on symptoms or an exam alone.
What does distinguish the two is time. A viral sinus infection typically starts improving after five to seven days. A bacterial infection persists for seven to ten days or longer, and often gets worse after the one-week mark. There’s also a pattern called “double worsening,” where symptoms seem to improve around days four through seven, then suddenly get worse again. That rebound pattern strongly suggests a bacterial cause. Since the vast majority of sinus infections start out viral, the best initial approach is focused home care while your immune system does the work.
Flush Your Sinuses With Saline
Nasal saline irrigation is one of the most effective things you can do for a sinus infection. Rinsing your nasal passages with salt water physically washes out mucus, inflammatory debris, and irritants, which reduces congestion and helps your sinuses drain. You can use a neti pot, squeeze bottle, or bulb syringe.
The one safety rule that matters: never use plain tap water. Tap water can contain organisms, including a rare but dangerous amoeba, that are harmless if swallowed but potentially fatal if introduced into your nasal passages. The CDC recommends using store-bought distilled or sterilized water, or tap water that has been boiled at a rolling boil for one minute (three minutes if you live above 6,500 feet) and then cooled. Store any unused boiled water in a clean, sealed container. You can rinse two to three times per day when symptoms are at their worst, tapering to once daily as you improve.
Use Decongestant Sprays Carefully
Over-the-counter nasal decongestant sprays (the kind containing oxymetazoline or phenylephrine) can provide fast relief from stuffiness by shrinking swollen tissue in your nasal passages. They work within minutes, which makes them tempting to keep using. But you should not use them for more than three consecutive days. Beyond that, the spray can cause rebound congestion, where your nasal passages swell up worse than before, creating a cycle that’s hard to break.
If you need longer-lasting congestion relief, oral decongestants are a better option for short-term use, though they can raise blood pressure and cause jitteriness. Steroid nasal sprays (available over the counter) take much longer to kick in but are safe for extended use. Research shows their full benefit for sinus infections builds over about three weeks, so they’re most useful if you’re dealing with persistent or recurring symptoms rather than a quick bout of congestion.
Manage Pain and Pressure at Home
Sinus pressure and facial pain are often the most miserable part of a sinus infection. A warm compress placed over your forehead, cheeks, and nose for 10 to 15 minutes can loosen mucus and ease the aching sensation. Over-the-counter pain relievers like ibuprofen or acetaminophen help with both pain and any accompanying fever.
Keeping indoor humidity between 40 and 50 percent helps soothe irritated sinus passages without creating conditions that encourage mold growth. A cool-mist humidifier in your bedroom at night is the simplest way to achieve this. If you don’t have a humidifier, breathing steam from a hot shower or a bowl of hot water (with a towel draped over your head) provides temporary relief. Staying well hydrated also thins mucus, making it easier for your sinuses to drain. Water, broth, and hot tea all count.
Sleeping with your head slightly elevated on an extra pillow helps mucus drain downward rather than pooling in your sinuses, which is why many people notice their worst congestion at night.
Know When Antibiotics Are Needed
Since most sinus infections are viral, antibiotics won’t help in the majority of cases. Guidelines from the Infectious Diseases Society of America identify three specific patterns that suggest a bacterial infection warranting antibiotic treatment:
- Persistent symptoms: No improvement after 10 days.
- Severe onset: A fever of 102°F or higher along with nasal discharge and facial pain lasting three to four days.
- Double worsening: Symptoms that improve after four to seven days, then get noticeably worse again.
If your sinus infection fits one of those patterns, it’s worth seeing a provider. Even then, some guidelines support a “watchful waiting” approach where you and your doctor agree to hold off on antibiotics for a few more days to see if symptoms resolve. If antibiotics are prescribed, it’s important to take the full course even if you start feeling better partway through.
Warning Signs That Need Immediate Attention
Sinus infections rarely become dangerous, but the sinuses sit close to the eyes and brain, and infection can occasionally spread to those areas. Go to an emergency room or urgent care immediately if you develop any of the following: pain, swelling, or redness around your eyes; double vision or other vision changes; a high fever that won’t respond to medication; a stiff neck; or confusion. These can signal a serious complication that requires rapid treatment.
When a Sinus Infection Won’t Go Away
If your symptoms drag on for 12 weeks or more, the diagnosis shifts from acute to chronic sinusitis. Chronic sinusitis is a different condition with different causes. It can be driven by nasal polyps, allergies, a deviated septum, or fungal infections rather than the straightforward viral or bacterial triggers behind an acute episode.
Treatment for chronic sinusitis typically involves long-term use of steroid nasal sprays, regular saline irrigation, and sometimes allergy management. In cases where polyps or structural problems are blocking sinus drainage, surgery to widen the sinus openings may be recommended. If you’ve had multiple sinus infections in a single year or one that simply won’t resolve despite treatment, an evaluation by an ear, nose, and throat specialist can identify structural or immune factors keeping the cycle going.