The fastest way to clear mucus from your nose is to blow it out one nostril at a time, gently, into a tissue. But when mucus is thick, sticky, or keeps coming back, you need strategies that go beyond blowing your nose. Saline rinses, steam, proper hydration, and short-term decongestants can all help, depending on what’s causing the congestion.
How to Blow Your Nose Without Making Things Worse
It sounds basic, but most people blow their nose incorrectly. Blowing both nostrils at once with force can push mucus backward into your sinuses or into the tubes connecting your nose to your middle ear. That can trigger sinus pain, a sinus infection, or even an ear infection.
The correct technique: press one finger against one nostril to close it, then gently blow out through the open nostril into a tissue. Repeat on the other side. The key word is gently. If you’re straining or your ears pop, you’re using too much force. Hard blowing can also rupture small blood vessels and cause nosebleeds.
Saline Nasal Rinses
Flushing your nasal passages with salt water is one of the most effective ways to clear stubborn mucus. A saline rinse physically washes out mucus, allergens, and inflammatory debris. It also appears to improve the function of the tiny hair-like structures (cilia) that line your nasal passages and sweep mucus toward your throat. When those cilia beat faster and more effectively, your nose clears itself better even after the rinse is done.
You can use a squeeze bottle, a neti pot, or a bulb syringe. Lean over a sink, tilt your head slightly to one side, and let the solution flow into one nostril and out the other. Solutions ranging from 0.9 to 3 percent salt concentration are commonly used. You can buy pre-mixed saline packets or make your own by dissolving about half a teaspoon of non-iodized salt and a pinch of baking soda in 8 ounces of water.
Water Safety Is Critical
Never use plain tap water for nasal rinsing. Tap water can contain amoebas, including one called Naegleria fowleri, that are harmless if swallowed but can cause a nearly always fatal brain infection if they enter through the nose. The CDC recommends using store-bought distilled or sterilized water, or tap water that has been boiled for at least one minute and then cooled. This isn’t an overcautious warning. People have died from rinsing their sinuses with contaminated tap water.
Steam and Warm Compresses
Breathing in warm, moist air loosens thick mucus and makes it easier to blow out. You can stand in a hot shower, lean over a bowl of steaming water with a towel draped over your head, or simply hold a warm, damp washcloth over your nose and cheeks for a few minutes. The effect is temporary, but it can provide real relief when you’re dealing with congestion from a cold or sinus infection. Repeating this several times a day is safe and costs nothing.
Decongestant Sprays: Effective but Time-Limited
Over-the-counter nasal decongestant sprays containing oxymetazoline (the active ingredient in brands like Afrin) work fast. They shrink swollen blood vessels in your nasal lining, opening your airways within minutes. The problem is that using them for more than three days can cause rebound congestion, a condition called rhinitis medicamentosa, where your nose becomes more blocked than it was before you started using the spray. Three days is the typical limit printed on the packaging, and it exists for a good reason. If you’ve already been using a spray longer than that and your congestion is worsening, the spray itself may now be the problem.
Why Many Oral Decongestants Don’t Work
If you’ve taken cold medicine pills for congestion and felt like they didn’t do much, you’re not imagining it. The FDA proposed removing oral phenylephrine, the most common decongestant ingredient in over-the-counter pills and liquid cold medicines, after an advisory committee unanimously concluded that it does not work as a nasal decongestant at recommended doses. Phenylephrine is still on store shelves as of this writing, so check the active ingredients on the box. Pseudoephedrine (sold behind the pharmacy counter in most states) is the oral decongestant with stronger evidence behind it.
Staying Hydrated Helps, With a Caveat
You’ll find the advice to “drink plenty of fluids” in nearly every cold remedy guide, and there’s physiological logic to it: when you’re well-hydrated, your mucus tends to stay thinner and easier to move. But the research is more nuanced than “just drink water.” One study found that pre-hydrating with a carbohydrate-electrolyte beverage (think sports drinks) improved nasal mucus clearance for about two hours, while plain water alone didn’t show a significant difference compared to no hydration. That doesn’t mean water is useless. It means that if you’re dehydrated from illness, fever, or dry indoor air, replenishing fluids and electrolytes together may do more to thin your mucus than water alone.
Warm fluids like broth, tea, or soup pull double duty: they contribute to hydration and produce steam you inhale while drinking.
Sleeping With Congestion
Congestion almost always feels worse at night because lying flat lets mucus pool in your nasal passages and throat. Elevating your head changes the equation. Stack an extra pillow or two, or slide a wedge under the head of your mattress so gravity helps mucus drain downward rather than collecting where it triggers coughing or that suffocating blocked feeling. Running a humidifier in the bedroom also keeps nasal passages from drying out overnight, which prevents mucus from thickening into the cement-like plugs you wake up with.
Clearing a Baby’s Nose
Infants can’t blow their own noses, and because they breathe primarily through their noses for the first several months, even mild congestion can interfere with feeding and sleep. Pediatric guidance has shifted away from traditional bulb syringes because you can’t see the tip inside the baby’s nostril, making it too easy to injure the delicate nasal lining if the baby moves. Human-suction aspirators, where you place a small tube at the edge of the baby’s nostril and use your own breath through a filtered mouthpiece to create gentle suction, give you much better control over the force applied. A few drops of saline in each nostril before suctioning helps loosen the mucus first.
When Mucus Signals Something More
Clear mucus that shows up with a cold and resolves within 10 days is normal. Yellow or green mucus during a cold is also normal and just means your immune system is actively fighting the infection. Color alone doesn’t mean you need antibiotics. What does matter is the timeline and accompanying symptoms. Congestion that lasts longer than 10 days without improving, mucus with a foul smell, facial pain or pressure that worsens after initially getting better, or high fever alongside thick nasal discharge can point toward a bacterial sinus infection that may need treatment. Bloody mucus that recurs without an obvious cause (like dry air or forceful blowing) is also worth getting checked out.