Nasal Congestion in Pregnancy: Complete Guide
A blocked or stuffy nose that has nothing to do with a cold is one of the more surprising early pregnancy symptoms. It has a name — pregnancy rhinitis — and it's caused by hormones rather than infection. It's harmless, but it can be annoying, especially at night, so it helps to know what's happening and what actually helps.
Why pregnancy causes a stuffy nose
Rising oestrogen and progesterone increase blood flow throughout your body, including to the mucous membranes lining your nose. This makes the tissue swell and produces more mucus than usual, leading to that blocked, stuffy feeling. It can start as early as the first trimester and tends to be worse in the third trimester when blood volume is highest. It's not an allergy and it's not a cold — although both of those can happen at the same time and make things feel worse.
Safe ways to manage it
- Use a saline nasal spray or rinse — it's drug-free and safe to use as often as you like.
- Run a humidifier in your bedroom, particularly overnight when central heating can dry out the air.
- Prop yourself up with an extra pillow to help drainage while you sleep.
- Stay well hydrated — thinner mucus is easier to clear.
- Try gentle steam inhalation, such as sitting in a steamy bathroom.
- Nasal strips (the adhesive kind that sit across the bridge of the nose) are a physical, medication-free option some women find helpful.
What to be cautious with
- Decongestant nasal sprays and tablets (containing pseudoephedrine or oxymetazoline) are best avoided, or only used briefly and after checking with your midwife, GP, or pharmacist, as they can affect blood pressure.
- Overusing medicated nasal sprays can cause rebound congestion that makes symptoms worse once you stop.
- If congestion comes with a sore throat, fever, facial pain, or thick coloured discharge, this may be a sinus infection or cold rather than plain pregnancy rhinitis, and is worth mentioning to your GP.
Frequently Asked Questions
Is nasal congestion normal in pregnancy?
Yes, it's very common and is usually just pregnancy rhinitis caused by increased blood flow to the nasal passages. It isn't harmful to you or your baby. It typically settles down on its own after birth once hormone levels return to normal.
How long does pregnancy congestion last?
For many women it comes and goes throughout pregnancy, often worsening in the third trimester, and clears up within a couple of weeks after delivery. Using saline spray and a humidifier regularly can keep symptoms more manageable in the meantime.
When should I see a doctor about congestion in pregnancy?
Speak to your GP or midwife if congestion is accompanied by a high fever, facial pain, thick green or yellow discharge, or if it's severely affecting your sleep or breathing. These can suggest a sinus infection rather than straightforward pregnancy rhinitis and may need different treatment.
This article is for informational purposes only and does not constitute medical advice.
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