Most sinus infections are viral and clear up on their own within 7 to 10 days, so the best things to take are treatments that control your symptoms while your body fights the infection. Antibiotics only help when the infection is bacterial, which accounts for a small fraction of cases. Here’s what actually works at each stage.
Pain and Pressure Relief
The facial pain and headache from a sinus infection respond well to standard over-the-counter pain relievers. Ibuprofen is often the better choice because it reduces both pain and the inflammation driving the pressure behind your cheeks and forehead. Acetaminophen works for pain and fever but won’t address swelling. You can also alternate the two if one alone isn’t enough. Follow the dosing instructions on the package and don’t exceed the daily maximum for either.
Clearing Congestion
Oral decongestants containing pseudoephedrine shrink swollen nasal passages and help your sinuses drain. These are kept behind the pharmacy counter in most states, so you’ll need to ask for them. They can raise blood pressure and cause jitteriness, so they’re not ideal if you have heart problems or anxiety.
Nasal decongestant sprays (oxymetazoline) work faster and more directly, but they come with a hard limit: three days of use, maximum. After that, the spray starts depriving your nasal tissue of blood flow, which triggers rebound inflammation. Your congestion comes back worse than before, a condition called rhinitis medicamentosa. If you use a spray, treat it as a short bridge while other remedies kick in, then stop.
Guaifenesin for Thick Mucus
If your mucus is thick and hard to clear, guaifenesin (the active ingredient in Mucinex and similar products) can help. It works by increasing the total volume of mucus while making it thinner and less sticky, so it drains more easily. A small clinical trial found that 14 days of guaifenesin produced significant improvement in sinus symptom scores compared to placebo. It won’t cure an infection, but it keeps mucus moving, which is important for recovery. Drink plenty of water alongside it for the best effect.
Nasal Saline Irrigation
Rinsing your sinuses with a saline solution, using a neti pot, squeeze bottle, or similar device, is one of the most effective home treatments for sinus infections. It physically flushes out mucus, bacteria, and inflammatory debris. Many people notice relief within a day or two of regular rinsing.
Water safety matters here. The CDC recommends using only distilled or sterile water (sold at any pharmacy), or tap water that has been boiled at a rolling boil for one minute and then cooled. At elevations above 6,500 feet, boil for three minutes. Never use unboiled tap water, as it can introduce dangerous organisms directly into your nasal passages. If your water looks cloudy, filter it through a coffee filter or clean cloth before boiling.
Steam and Humidity
Breathing in warm, moist air helps thin mucus and soothes irritated nasal tissue. You can pour just-boiled water into a bowl, drape a towel over your head, and inhale slowly through your nose for two to five minutes per session. Keep sessions under 10 to 15 minutes and stay far enough from the water to avoid burns. A hot shower works too. Running a humidifier in your bedroom at night can prevent your sinuses from drying out overnight, which often makes morning congestion worse.
When You Actually Need Antibiotics
Antibiotics are appropriate only for bacterial sinusitis, and the distinction matters because taking them unnecessarily contributes to resistance and exposes you to side effects for no benefit. Current guidelines say a bacterial sinus infection is likely in two specific scenarios: your symptoms have persisted for 10 days or more without improvement, or your symptoms initially got better and then worsened again within 10 days (sometimes called “double worsening”).
If your doctor determines you need antibiotics, the first-line choice is typically amoxicillin or amoxicillin-clavulanate. The standard course lasts 7 to 10 days, with your doctor assessing improvement during the first week. If you have risk factors for antibiotic-resistant bacteria (recent antibiotic use, for example), your doctor may choose a higher dose or a different medication. Finish the full course even if you feel better partway through.
Symptoms That Need Immediate Attention
Most sinus infections are uncomfortable but not dangerous. However, in rare cases the infection can spread to nearby structures, including the eye socket or the brain. Go to an emergency room if you develop any of the following:
- Swelling, redness, or pain around the eyes
- Double vision or other vision changes
- High fever
- Confusion
- A stiff neck
These can indicate the infection has spread beyond the sinuses and requires urgent treatment, often with intravenous antibiotics or imaging to assess the extent.
Putting It All Together
For the first 10 days, your treatment plan looks like this: ibuprofen or acetaminophen for pain, saline rinses once or twice daily, steam inhalation as needed, guaifenesin if mucus is thick, and a short course of decongestant spray or oral decongestant if congestion is severe. Stay hydrated and rest. If you’re not improving after 10 days, or you experience the double-worsening pattern, that’s when to see a provider about antibiotics. Most people recover fully within two to three weeks with supportive care alone.