A stuffy nose during pregnancy is extremely common, and you can safely relieve it using saline rinses, nasal strips, proper sleep positioning, and in some cases, certain medications your provider can recommend. The congestion is often caused by hormonal changes that swell the tissue lining your nasal passages, not necessarily a cold or allergies, and it typically resolves on its own after delivery.
Why Pregnancy Makes Your Nose So Stuffy
Rising estrogen and increased blood volume during pregnancy cause the blood vessels inside your nose to expand, which swells the nasal lining and makes it harder to breathe. This condition, called pregnancy rhinitis, can start in any trimester but tends to get worse as pregnancy progresses. It feels like a permanent cold: stuffiness, mouth breathing, snoring, and disrupted sleep.
The key distinction is that pregnancy rhinitis happens without an infection or allergies. If your congestion comes with thick yellow or green mucus, facial pain, or a fever, that points toward a sinus infection rather than hormonal stuffiness, and you’d want to talk to your provider about treatment.
Saline Rinses: The Best First Step
Flushing your nasal passages with a saltwater solution is the safest and most effective starting point. It’s completely drug-free, clears mucus and irritants, and can be repeated several times a day. You can use a neti pot, squeeze bottle, or bulb syringe.
The one safety rule that matters: never use plain tap water. Tap water can contain bacteria and amoebas that are harmless if swallowed but can cause serious infections when introduced directly into nasal passages. The FDA recommends using only distilled or sterile water (labeled as such at the store), water that has been boiled for 3 to 5 minutes and cooled to lukewarm, or water filtered through a device specifically designed to trap infectious organisms. Previously boiled water stays safe in a clean, closed container for up to 24 hours.
To rinse, lean over a sink and tilt your head sideways so your forehead and chin are roughly level. This keeps the liquid from flowing into your throat. Breathe through your mouth, pour the saline into your upper nostril, and let it drain out the lower one. Repeat on the other side. Afterward, gently blow your nose. Clean your rinse device thoroughly and let it air dry or dry the inside with a paper towel between uses.
Nasal Strips and Positioning at Night
Congestion almost always feels worse at night, and two simple changes can make a real difference. External nasal dilator strips (the adhesive strips you place across the bridge of your nose) work by mechanically widening the nasal valve area, which reduces the resistance you feel when breathing in. Research on pregnant women with nasal obstruction has found they improve sleep quality, and they’re completely non-invasive and drug-free.
Sleeping slightly upright also helps. When you lie flat, gravity pulls more blood into the vessels of your nasal lining, increasing swelling. Propping your head and upper body up with an extra pillow or a wedge pillow encourages fluid to drain away from your sinuses. Combined with a nasal strip, this can turn a miserable night of mouth breathing into something much more manageable.
Steam and Humidity
Breathing in warm, moist air loosens mucus and temporarily shrinks swollen nasal tissue. A hot shower before bed is the simplest approach. You can also lean over a bowl of hot water with a towel draped over your head, breathing the steam for five to ten minutes. Running a cool-mist humidifier in your bedroom overnight keeps the air from drying out your already irritated nasal passages, which can make congestion worse, especially in winter or air-conditioned rooms.
Medications That Are Considered Safe
If non-drug methods aren’t cutting it, certain medications can help, though the general principle during pregnancy is to use the lowest effective dose for the shortest time possible and to be especially cautious in the first trimester.
Steroid Nasal Sprays
Fluticasone nasal spray (the active ingredient in several over-the-counter sprays) can be used during pregnancy. Very little of the medication enters your bloodstream, and almost none reaches the baby. Even the small amount that might cross over is not considered harmful. These sprays reduce inflammation inside the nose and work best when used consistently over several days rather than as one-time relief. Let your provider know you’re using one so it’s part of your care plan.
Antihistamines
If allergies are contributing to your congestion (sneezing, itchy eyes, clear runny nose on top of the stuffiness), oral antihistamines like loratadine and cetirizine are options that providers commonly recommend during pregnancy for mild allergy symptoms. They won’t do much for purely hormonal pregnancy rhinitis, but they can take the edge off if allergies are layered on top of it.
Oral Decongestants to Avoid
This is where caution matters most. Pseudoephedrine and phenylephrine, the active ingredients in many cold and sinus pills, should be avoided in the first trimester. Pseudoephedrine was once considered low risk, but more recent studies have found small associations with certain birth defects. Phenylephrine has not had its safety in pregnancy established at all. Even in the second and third trimesters, medical guidelines recommend using oral decongestants sparingly. Saline rinses and nasal steroid sprays are better long-term strategies.
Daily Habits That Help
Staying well hydrated thins mucus and keeps your nasal membranes from drying out. Drinking water, broth, and warm beverages throughout the day supports everything else you’re doing. Regular light exercise, even a brisk walk, temporarily opens nasal passages by naturally shifting blood flow and stimulating deeper breathing.
Avoid known irritants that make swelling worse: cigarette smoke, strong perfumes, cleaning product fumes, and very dry air. If you’re dealing with allergies on top of pregnancy rhinitis, keeping windows closed on high-pollen days, showering before bed to rinse pollen from your hair and skin, and using allergen-proof pillow covers can reduce the total burden on your already-swollen nasal passages.
How Long It Lasts
Pregnancy rhinitis resolves after delivery, typically within a couple of weeks as hormone levels return to normal. That can feel like a long time when you’re in the thick of it, especially during the third trimester when symptoms tend to peak. The good news is that combining several of the strategies above (saline rinses during the day, steam before bed, nasal strips and elevation at night, and a steroid spray if needed) is often enough to make the congestion manageable rather than miserable.