Decongestants for a stuffy nose at night: pills vs sprays, and drug-free options

Decongestants ease a stuffy nose by narrowing the swollen blood vessels inside it, and they come as pills, liquids, sprays and drops. At night, the choice between them matters more than usual. Sprays work fast but can cause rebound congestion if you use them too long, one common oral ingredient barely works according to the FDA, and another can keep you awake.

This guide compares your options and covers who should skip decongestants altogether. It's general information, not medical advice. Ask a pharmacist or doctor before taking any decongestant, especially if you have a health condition or take other medicines.

How do decongestants work?

Decongestants work by narrowing the blood vessels in the lining of your nose. Cleveland Clinic explains that when your body fights a cold or reacts to an allergen, extra blood flows to your nose, the tissue swells, and you feel blocked. Decongestants reduce that swelling, which opens the airway.

They treat the symptom, not the cause. MedlinePlus notes that pseudoephedrine relieves congestion but won't treat the cause or speed recovery. The NHS says decongestants are meant for short-term relief from a blocked nose caused by colds, flu, hay fever and sinusitis.

Night is often when congestion feels worst. A 2022 review of nine studies found that lying down increases nasal resistance and reduces airflow through the nose. That's part of why a nose that felt fine at dinner can feel blocked once you're in bed. Our guide to why your nose gets stuffy at night covers the other causes.

Oral vs spray decongestants: what's the difference?

Oral and spray decongestants contain similar types of drug but behave differently. A spray acts mainly where you put it, inside the nose, and works quickly. A tablet or liquid travels through your whole body, which is why it can affect sleep and blood pressure. Here's how the main options compare.

Does oral phenylephrine actually work?

Oral phenylephrine does not work as a nasal decongestant at the labeled dose, according to the FDA's review. On September 11 and 12, 2023, the FDA's Nonprescription Drugs Advisory Committee met to look at the evidence. The committee unanimously concluded that the current scientific data do not support the recommended oral dose as effective for nasal congestion.

In November 2024, the FDA proposed removing oral phenylephrine as an active ingredient from over-the-counter nasal decongestant products. The agency said its own review found the ingredient is not effective for this use, and that the proposal is based on effectiveness, not safety. The FDA stressed that this is a proposed order, and only a final order will change what can be sold. Until then, companies can keep selling products that contain oral phenylephrine, so you may still see it on shelves.

Two details are easy to miss. The FDA says its action applies only to phenylephrine taken by mouth, not phenylephrine nasal sprays. And many products combine oral phenylephrine with other ingredients, such as a pain reliever or cough medicine. The FDA says those other ingredients still work as intended.

The practical takeaway: read the Drug Facts label. If phenylephrine is the only decongestant in a tablet you're relying on for a blocked nose at night, ask a pharmacist about other options.

Why do some decongestants keep you awake?

Some decongestants keep you awake because oral forms act throughout the body, not just in the nose. MedlinePlus lists nervousness, restlessness, dizziness and difficulty sleeping among the possible side effects of pseudoephedrine. Cleveland Clinic lists sleep issues, nervousness and restlessness among the possible side effects of decongestants generally.

MedlinePlus gives two useful tips for sleep:

• Time your last dose. It advises taking the last dose of the day several hours before bedtime to help prevent trouble sleeping. It also comes as 12-hour and 24-hour extended-release tablets, so check which kind you have and follow its label.
• Watch the caffeine. It says foods and drinks with large amounts of caffeine can make pseudoephedrine's side effects worse.

Combination products add another layer. The NHS notes that many decongestants are sold as "all-in-one" remedies that also contain painkillers or antihistamines. The NHS lists feeling sleepy as a possible side effect and suggests looking for non-drowsy versions if that's a problem. Check every ingredient so you know what each one does, and never double up. The NHS warns against taking extra doses of a painkiller or antihistamine that's already in an all-in-one product.

Are decongestant nasal sprays better at night?

Decongestant nasal sprays are often a better fit for a single bad night, because they act mainly in the nose and work fast. The catch is how long you use them. The NHS says decongestant sprays and drops should not be used for more than 5 days at a time, because using them too long can make your stuffiness worse.

Cleveland Clinic calls this rebound effect rhinitis medicamentosa and says it is caused by overusing decongestant sprays. It also notes that oral decongestants don't carry the same rebound risk. If you've been using a spray for longer than the label allows, our guide to decongestant spray rebound explains how to come off it.

For a cold, a few nights of a spray used as directed is what it's for. For congestion that comes back night after night, such as allergies, a steroid spray is usually a better long-term option. Our guide to nasal spray types compares saline, steroid, antihistamine and other sprays.

Who should avoid decongestants?

Several groups should talk to a pharmacist or doctor before taking any decongestant, spray or oral. The NHS lists:

• people with high blood pressure
• people with diabetes
• people with an overactive thyroid
• men with an enlarged prostate
• people with liver, kidney, heart or circulation problems
• people with glaucoma (increased pressure in the eye)
• people taking other medicines

Cleveland Clinic is firmer on blood pressure. It says people with unmanaged high blood pressure shouldn't take nasal decongestants, and that they can raise blood pressure even when it is managed. MedlinePlus says to tell your doctor or pharmacist before taking pseudoephedrine if you take, or have recently stopped, a type of antidepressant called an MAO inhibitor. The NHS warns that some antidepressants combined with decongestants can cause a dangerous rise in blood pressure.

For children, the NHS says decongestants should not be given to those under 6, and children aged 6 to 11 should take them for no more than 5 days. For pregnancy, the NHS says it's not clear whether any decongestant is safe, so use one only if a healthcare professional advises it.

Why is pseudoephedrine behind the counter?

Pseudoephedrine is kept behind the pharmacy counter in the US because of federal law. The FDA explains that the Combat Methamphetamine Epidemic Act allows pseudoephedrine to be sold only from behind the counter or from a locked cabinet. Buyers must show photo identification, the amount one person can buy each month is limited, and stores must keep purchase records for at least two years.

It's sold without a prescription under federal law, but you have to ask the pharmacist for it.

What are drug-free options for a stuffy nose at night?

Drug-free options are worth trying first, or alongside a short course of medicine, because none of them carries a rebound risk. Each one is simple to set up before bed:

• Saline. A saline spray or rinse washes out mucus and allergens. A 2018 Cochrane review found saline rinsing may ease allergy symptoms with no reported side effects. See how to use a saline rinse.
• Raise your head. Since lying flat increases nasal resistance, propping up your head and shoulders can help. Our guide on how to sleep with a stuffy nose has more.
• Nasal strips. These hold the sides of the nose open mechanically. In a 2018 randomized, placebo-controlled trial, 59 people with chronic nighttime congestion used either a nasal strip or a placebo strip for two weeks. The real strips improved some measures of congestion and sleep compared with placebo. Read more in best nasal strips for congestion.

If your nose stays blocked for weeks, or decongestants are becoming a nightly habit, see a doctor to find out what's behind it.

Our pick (paid partner): TitanAir Nasal Strips

For a drug-free option you can use on the same night as other remedies, our pick is TitanAir Nasal Strips. This is our recommendation, not the result of testing or ranking products ourselves.

Titan says the strips are drug-free external nasal dilators with flexible spring-loaded bands. Titan's directions are to place them just above the flare of the nostrils, on the soft part of the nose rather than the bony bridge, on clean, dry skin with no moisturizer. To remove one, Titan suggests loosening it with warm water and peeling slowly from the ends inward. Titan says every batch is third-party tested and certified PFAS-free, and it offers a 30-night guarantee.

Read next

• Types of nasal spray, explained
• How to unblock your nose before bed
• Nasal strips vs. nasal sprays for nighttime congestion

* This content is for informational and educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure or prevent any disease or health condition. Talk to a qualified healthcare provider about your health.