Most sinus infections are caused by viruses and clear up on their own within 7 to 10 days. The best things you can do during that window are manage your symptoms at home with saline rinses, stay hydrated, and use short-term decongestants to keep your nasal passages open. Antibiotics only help if the infection is bacterial, which accounts for a small fraction of cases.
How to Tell if It’s Viral or Bacterial
This distinction matters because it determines whether you need medication or just time. A viral sinus infection follows the pattern of a bad cold: congestion, facial pressure, thick mucus, and general fatigue that gradually improves over a week or so.
A bacterial sinus infection is more likely if your symptoms last 10 days without any improvement, if you develop a fever of 102°F or higher along with facial pain and nasal discharge lasting three to four days, or if your symptoms seem to improve after four to seven days only to get worse again. That “double worsening” pattern is one of the most reliable signs that bacteria have taken hold. If any of these apply, it’s worth seeing a provider, because antibiotics can make a real difference at that point.
Saline Nasal Rinses
Rinsing your sinuses with salt water is one of the most effective things you can do for a sinus infection at any stage. It physically flushes out mucus, bacteria, allergens, and inflammatory debris from your nasal passages, which reduces pressure and helps your sinuses drain. You can use a neti pot, squeeze bottle, or bulb syringe.
The one safety rule that matters: never use tap water. Tap water can contain trace amounts of germs, minerals, and other substances you don’t want introduced directly into your sinuses. Use distilled water, or boil tap water for at least one minute and let it cool before using it. Clean your rinsing device thoroughly after each use. With those precautions, saline irrigation is safe to do daily, even multiple times a day when symptoms are at their worst.
Decongestants and Pain Relief
Over-the-counter decongestant nasal sprays work by constricting blood vessels inside your nose, which shrinks swollen tissue and opens your airway almost immediately. They’re useful for short-term relief, but limit use to three days maximum. Beyond that, your nose can develop rebound congestion, a condition called rhinitis medicamentosa, where the spray itself starts causing the swelling it was meant to treat. You end up more congested than when you started.
Oral decongestants (the kind you swallow) don’t carry the same rebound risk and can help over a longer stretch, though they can raise blood pressure and cause jitteriness. For pain and facial pressure, standard anti-inflammatory pain relievers work well to reduce both swelling and discomfort.
Steroid Nasal Sprays
Over-the-counter nasal corticosteroid sprays reduce inflammation inside the sinuses and can meaningfully improve facial pain, congestion, headache, and postnasal drip. Unlike decongestant sprays, they’re safe for longer use. The catch is that they work slowly. Clinical trials show a modest but real benefit by about day 15 to 21 of use. They won’t give you instant relief the way a decongestant spray will, but they address the underlying swelling rather than just masking it.
If you have recurring sinus infections or allergies that trigger sinus problems, a steroid spray used regularly can also reduce how often infections come back. Studies found recurrence rates of 5 to 15 percent in people using steroid sprays compared to 4 to 37 percent in those who didn’t.
Humidity and Steam
Keeping the air around you moist helps thin out mucus so it drains more easily. Aim for indoor humidity between 30% and 50%. A cool-mist humidifier is the better choice, as heated humidified air hasn’t shown the same benefits for congestion in clinical settings. Clean your humidifier regularly to prevent mold and bacteria from growing in the water reservoir.
A simpler option: stand in a hot shower for 10 to 15 minutes, or drape a towel over your head and breathe the steam rising from a bowl of hot water. The warm, moist air loosens thick secretions and provides temporary but noticeable relief from pressure. Drinking plenty of fluids throughout the day works from the inside out, keeping mucus thinner and easier to clear.
When Antibiotics Are Necessary
When a bacterial sinus infection is confirmed or strongly suspected, the recommended first-line treatment is amoxicillin, sometimes combined with clavulanate (a compound that helps it work against resistant bacteria). Your provider may choose a higher dose if you’re at elevated risk for antibiotic-resistant bacteria, for instance if you’ve taken antibiotics recently, have a child in daycare, or were recently hospitalized.
Antibiotics won’t help a viral sinus infection, and taking them unnecessarily contributes to antibiotic resistance. That’s why the 10-day rule matters: most providers will recommend watchful waiting with symptom management before prescribing anything, unless you meet the criteria for a bacterial infection.
Herbal Extracts
An extract from the South African geranium plant (sold under brand names like Umcka) has some early clinical evidence behind it. In small studies, patients taking this extract for 10 days showed improvements in nasal congestion, facial pain, and sense of smell. One trial found that patients using the herbal extract actually had less visible swelling and mucus buildup than those treated with amoxicillin, though a separate comparison against a different antibiotic showed the drug performed better overall. The evidence base is still limited, but it’s one of the few herbal options with any clinical data supporting its use for sinus symptoms.
Signs of a Serious Complication
Sinus infections rarely become dangerous, but the sinuses sit close to your eyes and brain, so infection can occasionally spread. Get medical attention immediately if you notice pain, swelling, or redness around your eyes, double vision or other changes in sight, a high fever, confusion, or a stiff neck. These symptoms suggest the infection may have moved beyond your sinuses and needs urgent treatment.