Most sinus infections are caused by viruses and will clear up on their own within 7 to 10 days. What you do during that window, though, makes a real difference in how miserable you feel. The most effective home strategies focus on keeping your sinuses draining, reducing swelling in your nasal passages, and managing pain while your immune system does the heavy lifting.
Flush Your Sinuses With Saline
Nasal saline irrigation is the single most effective thing you can do at home. It physically washes out mucus, bacteria, and inflammatory debris from your sinus cavities, which reduces pressure and helps your sinuses drain. Stanford Medicine recommends irrigating each nostril with half a bottle of saline solution, twice a day. You can do it more often than that if it helps.
You can buy premade saline packets (NeilMed is a common brand) or mix your own: one teaspoon of non-iodized salt and one teaspoon of baking soda in about a quart of water. The water must be either boiled and cooled or distilled. Never use tap water directly, because in rare cases it can introduce dangerous organisms into your sinuses. A squeeze bottle or neti pot both work well. It feels strange the first time, but most people notice immediate pressure relief.
Reduce Swelling With Decongestants
Decongestants work by narrowing the swollen blood vessels inside your nose, which shrinks the tissue and reopens your airways. They come in two main forms: oral tablets containing pseudoephedrine (sold as Sudafed) and nasal sprays containing oxymetazoline (sold as Afrin). Both are available over the counter, though pseudoephedrine is kept behind the pharmacy counter in most states.
Oral decongestants take longer to kick in but provide broader relief, including for sinus pressure deep in your face. Nasal sprays work within minutes but come with a strict time limit: do not use oxymetazoline sprays for more than three consecutive days. Beyond that, your nasal tissue can become dependent on the spray and swell up worse than before, a frustrating rebound effect that can drag out your symptoms for weeks.
Manage Pain and Pressure
Sinus infections cause a dull, throbbing pressure across your forehead, cheeks, or around your eyes that tends to worsen when you bend forward. Over-the-counter pain relievers like ibuprofen or acetaminophen work well for this. Ibuprofen has the added benefit of reducing inflammation, which can help with the swelling that’s trapping mucus in the first place.
A warm compress across your face (a damp washcloth heated in the microwave for 20 to 30 seconds) can also provide temporary relief by loosening congestion and easing facial tenderness. Some people find that alternating warm compresses with saline rinses gives the best results.
Keep Your Air Moist
Dry indoor air thickens mucus and makes it harder for your sinuses to drain. Running a humidifier in your bedroom, especially while you sleep, helps keep secretions thin and moving. The Mayo Clinic recommends keeping indoor humidity between 30% and 50%. Going above 50% creates conditions for mold growth, which would only make things worse for your sinuses.
If you don’t have a humidifier, a hot shower works as a short-term substitute. Breathing steam for 10 to 15 minutes loosens mucus and provides temporary relief. Staying well hydrated throughout the day does the same thing from the inside, so keep water, tea, or broth nearby.
How to Tell if You Need Antibiotics
This is the question most people are really asking: is this bad enough for antibiotics? The answer depends on timing and a specific pattern of symptoms. According to guidelines from the CDC, a sinus infection is likely bacterial (and worth treating with antibiotics) if it meets one of three criteria:
- Symptoms last 10 days or more without any improvement
- Severe onset: a fever of 102°F or higher with thick nasal discharge and facial pain lasting three to four days
- “Double sickening”: symptoms start to improve after four to seven days, then suddenly get worse again
If none of those apply, you almost certainly have a viral infection, and antibiotics won’t help. About 85% to 90% of sinus infections are viral. When antibiotics are warranted, the current clinical guideline from the American Academy of Otolaryngology recommends amoxicillin as first-line treatment for 5 to 7 days. Your doctor may add clavulanate if you’ve had recent antibiotic use or have risk factors for resistant bacteria.
When a Sinus Infection Becomes Serious
Sinus infections very rarely become dangerous, but the sinuses sit close to your eyes and brain, so infection can occasionally spread to those areas. The most concerning complication is orbital cellulitis, where the infection moves into the tissue around the eye. Warning signs include a bulging eye, swelling around the eye socket, double vision, or difficulty moving the eye. In children especially, a high fever combined with eye swelling is a reason to go to the emergency room immediately.
In extreme cases, a sinus infection can spread to the membranes around the brain, causing meningitis. This is rare but life-threatening. If you develop a severe headache, stiff neck, confusion, or high fever that comes on rapidly, seek emergency care.
When It Won’t Go Away: Chronic Sinusitis
If your symptoms persist for 12 weeks or longer, you’ve crossed the threshold from acute to chronic sinusitis. Chronic sinusitis is a different condition with different causes. It’s often driven by ongoing inflammation rather than a single infection, and it can involve nasal polyps, allergies, or structural issues in the nasal passages. The diagnostic criteria require at least two symptoms (such as nasal obstruction, facial pressure, thick discharge, or reduced sense of smell) plus visible signs of inflammation on examination.
Chronic sinusitis doesn’t respond to the same short-course treatments that work for acute infections. It typically requires longer-term management with daily saline irrigation, nasal corticosteroid sprays, and sometimes allergy treatment. If you’ve been dealing with recurring or lingering sinus problems for months, it’s worth getting a proper evaluation rather than cycling through rounds of decongestants and hoping it resolves.