Most sinus infections are caused by viruses, not bacteria, and they improve on their own within seven to 10 days. That means the best thing you can do at home is manage your symptoms, keep your sinuses draining, and avoid the handful of mistakes that can make things worse. Here’s what actually works.
Flush Your Sinuses With Saline
Saline nasal irrigation is the single most effective home treatment for a sinus infection. Rinsing with salt water physically washes out mucus, removes inflammatory compounds from the nasal lining, and increases the beat frequency of the tiny hair-like cells (cilia) that move mucus out of your sinuses. You can use a neti pot, squeeze bottle, or bulb syringe. Most people notice relief within minutes.
Water safety matters here. Never use plain tap water straight from the faucet. The CDC recommends using store-bought distilled or sterile water, 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.) Store any leftover boiled water in a clean, covered container. Using unsterilized water carries a small but serious risk of introducing harmful organisms directly into your nasal passages.
Rinse each nostril once or twice a day while your symptoms last. Pre-made saline packets sold alongside neti pots give you the right salt concentration so the rinse doesn’t sting.
Stay Well Hydrated
Drinking enough fluids genuinely thins your nasal mucus. A study published in Rhinology measured mucus thickness in patients before and after they drank one liter of water over two hours. Viscosity dropped by roughly 70%, and about 85% of participants reported feeling noticeably less congested afterward. You don’t need to force gallons of water. Just drink consistently throughout the day: water, broth, tea, or other non-caffeinated fluids. If your mucus feels thick and sticky, that’s a sign you could use more.
Use Steam and Humidity
Breathing in warm, moist air loosens congestion and soothes irritated nasal tissue. A hot shower works well. So does leaning over a bowl of steaming water with a towel draped over your head for five to 10 minutes. If you use a humidifier, keep your indoor humidity between 30% and 50%. Going higher than that encourages mold and dust mites, which can irritate your sinuses further. Clean your humidifier regularly to prevent bacteria from building up in the reservoir.
Decongestants: What to Know
Over-the-counter decongestant nasal sprays (like oxymetazoline, sold as Afrin) work fast and can provide real relief when congestion is severe. But there’s a strict time limit: do not use them for more than one week. Longer use causes rebound congestion, a condition called rhinitis medicamentosa, where your nasal passages swell up worse than before every time the spray wears off. This creates a cycle that can be difficult to break.
Oral decongestants like pseudoephedrine (Sudafed) don’t carry the same rebound risk and can be taken for a longer stretch. They’re less targeted, though, and can raise blood pressure or cause jitteriness. If you have high blood pressure or heart issues, check with a pharmacist before using them.
Warm Compresses and Sleep Position
Placing a warm, damp towel across your nose, cheeks, and forehead can ease facial pressure and pain. Reheat it every few minutes as needed. This won’t clear the infection, but it makes the throbbing, heavy feeling more manageable.
At night, elevate your head to help mucus drain rather than pooling at the back of your throat. Stack an extra pillow or slide a wedge under the head of your mattress. Sleeping flat tends to worsen congestion and that miserable post-nasal drip that triggers coughing at 2 a.m.
What Won’t Help
Antibiotics don’t work against viral sinus infections, and most sinus infections are viral. Even when a bacterial infection is present, guidelines recommend waiting before prescribing antibiotics in many cases. Herbal supplements, essential oils, and vitamin megadoses lack strong evidence for shortening a sinus infection. They won’t hurt in most cases, but they shouldn’t replace the basics: saline rinses, hydration, and decongestants as needed.
When It Might Be Bacterial
Three patterns suggest your sinus infection has become bacterial and may need medical treatment:
- Persistent symptoms lasting 10 days or more with no improvement at all.
- Severe onset with a fever of 102°F (39°C) or higher, thick discolored nasal discharge, and significant facial pain lasting at least three consecutive days from the start.
- Double worsening, where your symptoms start to get better after five or six days, then suddenly get worse again with new fever, increased headache, or heavier nasal discharge.
Any of these patterns is worth a call to your doctor, because bacterial sinusitis typically does benefit from antibiotics.
Signs of a Serious Complication
Rarely, a sinus infection can spread to nearby structures. Get medical attention right away if you notice pain, swelling, or redness around your eyes, a high fever that isn’t responding to standard fever reducers, confusion, double vision or other changes in your sight, or a stiff neck. These symptoms can indicate the infection has moved beyond the sinuses and needs urgent treatment.