Most sinus infections clear up on their own within seven to ten days, because the vast majority are caused by viruses, not bacteria. That means antibiotics won’t help in most cases. What will help is a combination of home care strategies that reduce swelling, thin out mucus, and keep your sinuses draining while your immune system does the heavy lifting.
First, Figure Out What You’re Dealing With
A viral sinus infection typically starts improving after five to seven days. A bacterial sinus infection persists for seven to ten days or longer, and often gets worse after the first week rather than better. The tricky part is that yellow or green mucus, fever, headache, and bad breath can all show up with either type. Even a doctor can’t distinguish between them based on symptoms alone.
If your symptoms aren’t improving after a week, or they get noticeably worse after initially getting better, that’s the point to see a doctor. A bacterial infection usually requires antibiotics. But starting antibiotics too early for what turns out to be a virus does nothing useful and can cause side effects or contribute to antibiotic resistance.
Flush Your Sinuses With Saline
Nasal saline irrigation is one of the most effective things you can do at home. A neti pot, squeeze bottle, or bulb syringe pushes a saltwater solution through your nasal passages, physically washing out mucus, allergens, and inflammatory debris. You can repeat this multiple times a day when symptoms are at their worst.
The one safety rule that matters: never use plain tap water. Tap water can contain organisms that are harmless in your stomach but dangerous in your nasal passages. Use distilled water (look for “distilled” on the label), water you’ve boiled and cooled, or water that’s been filtered through a 1-micron or smaller filter. Mix it with the saline packets that come with your rinse kit, or use a quarter teaspoon of non-iodized salt per cup of water.
Use Steam to Loosen Congestion
Breathing in warm, moist air loosens mucus in your nasal passages, throat, and lungs, and helps thin the mucus sitting in your sinuses so they can drain more easily. The simplest method: pour boiling water into a large bowl, drape a towel over the back of your head, lean over the bowl, and breathe in the steam for five to ten minutes. Keep your face far enough away to avoid burns.
You can also use an electric steam inhaler or vaporizer. These are convenient but need to be cleaned every few days during use, because the warm, wet environment encourages bacterial and fungal growth. A hot shower works too. Repeat steam inhalation as often as you need throughout the day.
Keep the Air Around You Humid
Dry indoor air thickens mucus and irritates already-inflamed sinus tissue. Running a humidifier in your bedroom can make a noticeable difference, especially overnight. Aim for indoor humidity between 30% and 50%. Too far above that range and you’re encouraging mold growth, which can make sinus problems worse.
Over-the-Counter Medications That Help
Several pharmacy-aisle options can ease symptoms while you recover, but each one comes with a specific use case.
- Pain relievers: Ibuprofen or acetaminophen can reduce the facial pain and pressure that make sinus infections miserable. Ibuprofen also reduces inflammation, which can help with swelling around the sinus openings.
- Nasal steroid sprays: Over-the-counter options like fluticasone shrink inflamed tissue inside the nose, which helps your sinuses drain. In one clinical trial at Duke University, patients using a steroid nasal spray recovered an average of three days faster than those using a placebo. These sprays work best with consistent daily use rather than as-needed dosing.
- Decongestant sprays: Products containing oxymetazoline or phenylephrine open up congested nasal passages fast. But you cannot use them for more than three days. After about three days, these sprays cause rebound congestion, a condition where your nose becomes more blocked than it was before you started. Limit them to the worst nights of sleep or moments when you truly can’t breathe.
- Oral decongestants: Pills containing pseudoephedrine don’t carry the same rebound risk and can be used for longer stretches, though they can raise blood pressure and cause jitteriness.
- Guaifenesin: This is the active ingredient in many mucus-thinning products. It helps keep secretions loose so they drain rather than sitting stagnant in your sinuses.
Stay Hydrated and Rest
Drinking plenty of fluids, whether water, tea, broth, or other non-alcoholic beverages, helps keep mucus thin and easier to drain. Warm liquids in particular can feel soothing and help open up congested passages. Rest gives your immune system the energy it needs to fight off the infection. Sleep with your head slightly elevated on an extra pillow to encourage drainage and reduce the pressure that builds when you lie flat.
When Antibiotics Are Actually Needed
If your symptoms last beyond ten days without improvement, or they initially get better and then suddenly worsen, a bacterial infection is likely. Your doctor may prescribe antibiotics at that point. Most people start feeling better within a few days of starting them, though you should finish the full course.
Recurrent acute sinusitis, defined as four or more infections per year with each lasting seven to ten days, is a pattern worth investigating further. And if you’ve had congestion, facial pressure, drainage, and reduced sense of smell lasting 12 weeks or longer, that’s chronic sinusitis, which requires a different treatment approach and usually a referral to an ear, nose, and throat specialist.
Symptoms That Need Immediate Attention
Sinus infections rarely become dangerous, but the sinuses sit close to the eyes and the brain, so infection can occasionally spread. Get medical care right away if you develop pain, swelling, or redness around your eyes, a high fever, double vision or other vision changes, a stiff neck, or confusion. These symptoms suggest the infection may have moved beyond the sinuses and needs urgent treatment.