Most sinus infections are viral and clear up on their own within 7 to 10 days, so the best medicines for most people are the ones that control symptoms: pain relievers, nasal steroid sprays, and saline rinses. Antibiotics only help when a sinus infection is bacterial, which is the minority of cases. Knowing which medicines to reach for, and when, can make a real difference in how quickly you feel better.
Most Sinus Infections Don’t Need Antibiotics
The majority of sinus infections start with a cold virus. Your sinuses become inflamed, mucus builds up, and you feel pressure, congestion, and pain. This is uncomfortable, but it resolves without antibiotics. Taking antibiotics for a viral sinus infection won’t speed your recovery and contributes to antibiotic resistance. About 2 in 5 infections caused by one of the most common sinus bacteria are already resistant to at least one antibiotic, according to the CDC.
A bacterial sinus infection is more likely if your symptoms persist without any improvement for at least 10 days, or if you start to feel better and then suddenly get worse again (sometimes called “double sickening”). Other signs that point toward a bacterial cause include fever above 100.4°F, severe one-sided facial pain, and thick discolored nasal discharge coming mainly from one side. If your situation matches that pattern, antibiotics become worthwhile.
Over-the-Counter Pain Relievers
For the facial pressure, headache, and general misery of a sinus infection, ibuprofen is typically the better choice over acetaminophen. Because ibuprofen reduces inflammation as well as pain, it targets the swelling in your sinus passages that causes so much of the discomfort. Acetaminophen relieves pain and reduces fever but doesn’t address inflammation. You can take up to 2,400 milligrams of ibuprofen per day (usually 400 to 600 mg every six to eight hours) or up to 3,000 milligrams of acetaminophen per day if ibuprofen isn’t an option for you due to stomach issues or other reasons.
Nasal Steroid Sprays
Over-the-counter nasal steroid sprays are one of the most effective treatments for sinus infections, and many people overlook them. These sprays reduce the swelling inside your nasal passages, which helps your sinuses drain and relieves pressure. In a clinical trial comparing a nasal steroid spray used twice daily against both amoxicillin (a common antibiotic) and a placebo, the steroid spray was significantly more effective than either at improving symptoms. Patients using the spray saw roughly a 46% reduction in their major symptom scores from baseline.
Common options available without a prescription include fluticasone (Flonase) and triamcinolone (Nasacort). They take a day or two to reach full effect, so starting early in your illness gives you the most benefit. These sprays don’t cause the rebound congestion that decongestant sprays like oxymetazoline can cause with prolonged use.
Saline Nasal Irrigation
Rinsing your sinuses with salt water is simple, cheap, and surprisingly effective. Using a neti pot, squeeze bottle, or other irrigation device physically flushes out mucus, irritants, and inflammatory substances. One study found that people with chronic sinus symptoms who used daily saline irrigation saw a 64% improvement in overall symptom severity compared to those relying on routine care alone.
You can buy premixed saline packets or make your own solution using distilled or previously boiled water (never tap water, to avoid rare but serious infections). Solutions ranging from 0.9% to 3% salinity have been used in studies, with no single concentration proven clearly superior. Many people find that rinsing once or twice a day during a sinus infection provides noticeable relief within the first day or two.
Decongestants
Oral decongestants like pseudoephedrine (Sudafed) and phenylephrine shrink swollen blood vessels in your nasal passages, which can temporarily open things up and relieve that stuffed-up feeling. They work best for short-term relief during the worst days of congestion. Pseudoephedrine is generally more effective than phenylephrine but is kept behind the pharmacy counter in most states.
Decongestant nasal sprays like oxymetazoline (Afrin) provide fast, powerful relief but should not be used for more than three consecutive days. Beyond that, your nasal tissues can become dependent on the spray, and congestion rebounds worse than before when you stop.
When Antibiotics Are the Right Call
If your symptoms have lasted 10 days or more without improving, or if they worsened after initially getting better, your doctor will likely prescribe an antibiotic. The first-line choice for adults is amoxicillin or amoxicillin-clavulanate. The version with clavulanate is preferred when there’s a higher risk of antibiotic-resistant bacteria, such as in people who’ve taken antibiotics recently or who live in areas with higher resistance rates.
A typical course lasts 7 to 10 days. Most people start feeling noticeably better within the first few days. If your symptoms return mildly after finishing a course, a second round of the same antibiotic for 7 to 10 days is a common approach. For people with penicillin allergies, other antibiotic classes are available, and your doctor can choose an appropriate alternative.
Treatment for Children
Children get sinus infections frequently, and the approach is similar to adults. Amoxicillin or amoxicillin-clavulanate remains the first-line antibiotic when a bacterial infection is suspected. Dosing is based on the child’s weight, so your pediatrician will calculate the right amount. Saline rinses work for kids too, though younger children may tolerate saline drops or gentle spray better than a full irrigation. Children’s ibuprofen or acetaminophen can manage pain and fever, dosed by weight.
What Recovery Looks Like
A viral sinus infection typically peaks around days 3 to 5 and then gradually improves over the following week. Some lingering congestion or mild postnasal drip can persist for a couple of weeks even after the worst has passed. If you’re treating symptoms aggressively with saline rinses, a nasal steroid spray, and pain relievers, you should notice meaningful improvement well before the 10-day mark.
Certain warning signs mean you should seek care promptly rather than continuing to manage things at home. Pain, swelling, or redness around your eyes can indicate the infection is spreading into the eye socket. High fever, confusion, double vision, or a stiff neck are signs of a potentially serious complication involving the brain or nervous system. These situations are rare but require immediate medical attention.