Skip to product information
1 of 1

  • Images are for illustration purposes only

Sterimar Stop & Protect Cold and Sinusitis Relief 120 Sprays - 20ml

Sterimar Stop & Protect Cold and Sinusitis Relief 120 Sprays - 20ml

  • 1. Ozempic®️-equivalent therapy now available for weight management
  • 2. Average weight loss of 17%, with 1 in 3 patients achieving over 20%
  • 3. May help reduce osteoarthritis-related pain
  • 4. Wegovy®️ is not expected to impact the effectiveness of oral contraceptives
  • 5. Supports cardiovascular risk reduction
  • 6. Over 22 million patients treated with semaglutide-based therapies since 2018

  • ✔️ Clears blocked nasal passages caused by colds and sinusitis
  • ✔️ Drug-free isotonic saline — no rebound congestion risk
  • ✔️ Suitable for adults and children aged 3 years and over
  • ✔️ 120 measured sprays per pack for consistent, hygienic dosing
  • ✔️ Washes away viruses and bacteria from nasal passages naturally

Price Checker

Regular price £7.49
Sale price £7.49
Sale Sold out
  • Lowest price guarantee
  • Includes FREE private prescription
View full details

 

What Is Sterimar Cold and Sinusitis Relief?

 

If you've ever had a cold that just won't shift — the blocked nose, the pressure behind your eyes, the constant need to blow — you'll know how draining it can be. Sterimar cold and sinusitis relief is a 20ml isotonic saline nasal spray that gently rinses the nasal passages to help clear congestion, remove irritants, and support your nose's natural defences. It delivers 120 measured sprays per pack, making it a practical option to keep at home or in your bag during cold and flu season. You can browse our full range of cold and flu remedies if you need additional support alongside this spray.

Sterimar Stop & Protect is an over-the-counter product, meaning no prescription is needed. It's suitable for adults and children aged 3 and over, and it works without any decongestant drugs — so there's no risk of rebound congestion that you sometimes get with medicated sprays.

 

How Does Sterimar Stop & Protect Work?

 

The mechanism here is straightforward but genuinely effective. The spray uses an isotonic sodium chloride solution — essentially purified sea water at a concentration that matches your body's own fluids — to irrigate the nasal mucosa. This physical action does several things at once:

  • Loosens and removes thick or dried mucus from the nasal passages
  • Washes away viruses, bacteria, and airborne allergens that settle on the nasal lining
  • Helps restore moisture to irritated or inflamed nasal tissue
  • Supports the cilia (tiny hair-like structures) that sweep debris out of the nose naturally

Because it's isotonic, it doesn't sting or dry out the nasal lining the way some hypertonic sprays can. It simply works with your body rather than against it.

 

Who Should Use Sterimar Stop & Protect?

 

This spray is a good fit for anyone dealing with nasal congestion linked to a cold, sinusitis, or upper respiratory tract infection. It's drug-free, so it's often a sensible first choice before reaching for medicated options. That said, it's worth knowing who it suits best:

  • Adults and children aged 3 years and over with cold-related nasal congestion
  • People with acute or recurrent sinusitis looking for non-medicated relief
  • Those who prefer to avoid pseudoephedrine or xylometazoline-based sprays
  • Individuals who want to support nasal hygiene during cold and flu season

It's also worth noting that nasal saline irrigation is widely recommended by NHS clinicians as a supportive measure for sinusitis. If you're also managing allergy-related nasal symptoms, you might find our allergy and hay fever range useful alongside this product.

 

How Does Sterimar Stop & Protect Compare to Other Nasal Sprays?

 

Feature Sterimar Stop & Protect Medicated Decongestant Spray (e.g. Otrivine)
Active ingredient Isotonic saline (sea water) Xylometazoline hydrochloride
Risk of rebound congestion None Yes, if used more than 7 days
Suitable for children aged 3+ Yes Check individual product labelling
Drug-free Yes No

 

Is Sterimar Stop & Protect Safe to Store and Use Long-Term?

 

Sterimar cold and sinusitis relief should be stored below 25°C and kept away from direct sunlight. Do not freeze the product. Once opened, use within the period indicated on the packaging. The nozzle should be cleaned regularly to maintain hygiene — simply rinse it under warm water after each use and allow it to dry.

Because this spray contains no preservatives or active drugs, it's generally well tolerated even with repeated use. However, if your symptoms persist beyond 7 days or worsen significantly, it's important to speak to your GP, as sinusitis can occasionally require antibiotic treatment or further investigation.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Sterimar Stop & Protect Cold and Sinusitis Relief 120 Sprays - 20ml specifications
Treatment category Nasal congestion, cold and sinusitis relief
Mechanism of action Isotonic saline irrigation of nasal passages
Effective for Blocked nose, sinusitis, cold-related nasal congestion
Suitable for Adults and children aged 3 years and over
Active ingredient Isotonic sodium chloride solution (sea water)
Pack size 20ml (120 sprays)
UK classification General Sale List (GSL)
Drug class Nasal saline preparation
Preparation Nasal spray solution
Route of administration Intranasal

Specifications of Sterimar Stop & Protect Cold and Sinusitis Relief 120 Sprays - 20ml

 

What Is Sterimar Stop & Protect and What Is It Used For?

 

Sterimar Stop & Protect Cold and Sinusitis Relief is a drug-free isotonic saline nasal spray used to relieve nasal congestion associated with colds, sinusitis, and upper respiratory tract infections. It works by physically rinsing the nasal passages with a gentle saline solution derived from natural sea water. The NHS recommends saline nasal irrigation as a supportive self-care measure for sinusitis, and this product provides a convenient, measured-dose format for doing exactly that. It is available over the counter without a prescription and is suitable for adults and children aged 3 years and over.

 

What Do You Need to Know Before Using Sterimar Stop & Protect?

 

Before using this spray, check the following contraindications and warnings carefully:

  • Do not use if you are allergic to any of the ingredients listed on the packaging
  • Do not use in children under 3 years of age — a specific infant formulation is available
  • Consult your GP before use if you have had recent nasal surgery or a nasal injury
  • If you have a nasal polyp or structural nasal abnormality, seek medical advice first
  • Stop use and seek medical advice if symptoms worsen or do not improve within 7 days

Regarding drug interactions:

  • No clinically significant drug interactions are known for isotonic saline nasal sprays
  • If you are using other nasal preparations, apply Sterimar first to clear the nasal passages, then wait a few minutes before using the other product

 

How Should You Use Sterimar Stop & Protect?

 

Using this spray correctly makes a real difference to how well it works. Follow these steps each time:

  1. Blow your nose gently to clear any loose mucus before starting
  2. Hold the bottle upright and remove the cap
  3. Tilt your head slightly forward and to one side
  4. Insert the nozzle gently into one nostril
  5. Press the pump once firmly while breathing normally through your mouth
  6. Allow the solution to drain naturally — do not sniff it back hard
  7. Repeat in the other nostril
  8. Rinse the nozzle under warm water after use and replace the cap
Indication Age Group Dose Frequency
Cold / sinusitis relief Adults and children aged 3+ 1–2 sprays per nostril 2–6 times daily
Nasal hygiene maintenance Adults 1–2 sprays per nostril 2–3 times daily

If you're managing a cold alongside other symptoms, our ear, nose and throat range includes additional products that may help.

 

What Are the Possible Side Effects of Sterimar Stop & Protect?

 

Because Sterimar Stop & Protect contains only isotonic saline, side effects are rare. However, as with any nasal preparation, some people may notice mild reactions, particularly when first using the spray.

Common side effects:

  • Mild nasal irritation immediately after spraying
  • Temporary sensation of fullness or pressure in the nose
  • Slight watering of the eyes

Less common side effects:

  • Temporary stinging or burning sensation in the nasal passages
  • Sneezing shortly after use
  • Mild nosebleed in people with fragile nasal blood vessels

Serious allergic reactions to isotonic saline nasal sprays are extremely rare. If you notice swelling of the face, lips, or throat, or have difficulty breathing after use, seek emergency medical attention immediately.

 

How Should You Store Sterimar Stop & Protect?

 

Correct storage keeps the product safe and effective for its full shelf life. Follow these guidelines:

  • Store below 25°C in a cool, dry place
  • Do not freeze the product
  • Keep away from direct sunlight and heat sources
  • Keep out of the reach and sight of children
  • Do not use after the expiry date printed on the packaging
  • Replace the cap after every use to maintain hygiene

If you're looking for complementary self-care products during cold season, you might also find our pain relief range helpful for managing associated headaches or sinus discomfort.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Sterimar Stop & Protect Cold and Sinusitis Relief online in the UK?

You can buy Sterimar Stop & Protect Cold and Sinusitis Relief directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £7.49. It is available without a prescription as a General Sale List medicine. No consultation is required — simply add it to your basket and it will be dispatched to your door.

How does Sterimar Stop & Protect work for a blocked nose?

Sterimar Stop & Protect uses an isotonic saline solution to physically rinse the nasal passages, loosening mucus and washing away viruses, bacteria, and allergens that accumulate on the nasal lining. This helps restore normal airflow through the nose without using any decongestant drugs. The isotonic concentration means it matches your body's own fluid balance, so it doesn't irritate or dry out the nasal mucosa.

How do I use Sterimar Stop & Protect step by step?

Blow your nose gently first, then hold the bottle upright and insert the nozzle into one nostril. Press the pump once while breathing through your mouth, allow the solution to drain naturally, and repeat in the other nostril. Rinse the nozzle under warm water after each use and replace the cap to keep it hygienic.

How many times a day should I use Sterimar Stop & Protect?

Adults and children aged 3 and over can use 1 to 2 sprays per nostril, 2 to 6 times daily, depending on the severity of congestion. There is no strict fixed schedule — use it when your nose feels blocked or congested throughout the day. Always follow the instructions in the product leaflet and do not exceed the recommended frequency.

Can children use Sterimar Stop & Protect Cold and Sinusitis Relief?

Yes, Sterimar Stop & Protect is suitable for children aged 3 years and over. For babies and younger toddlers under 3, a dedicated Sterimar baby formulation with a softer spray action is more appropriate. If you're unsure which product is right for your child, speak to your pharmacist before use.

What are the side effects of Sterimar Stop & Protect?

Side effects are uncommon because the spray contains only isotonic saline with no active drugs. Some people may experience mild nasal irritation, a brief stinging sensation, or sneezing immediately after use. If you notice persistent discomfort, nosebleeds, or any signs of an allergic reaction such as facial swelling, stop use and contact your pharmacist or GP.

Is Sterimar Stop & Protect safe to use during pregnancy?

Isotonic saline nasal sprays are generally considered safe during pregnancy as they contain no systemic drugs and act purely by physical irrigation. However, you should always consult your midwife, GP, or pharmacist before using any product during pregnancy to ensure it is appropriate for your individual circumstances. This is especially important if you have any underlying nasal conditions.

What happens if I use Sterimar Stop & Protect too often?

Unlike medicated decongestant sprays, Sterimar Stop & Protect does not cause rebound congestion (rhinitis medicamentosa) even with frequent use, because it contains no vasoconstrictive drugs. Using it more than 6 times a day is generally unnecessary and may cause mild irritation in some people. Stick to the recommended frequency for best results.

How long can I use Sterimar Stop & Protect for?

You can use Sterimar Stop & Protect for as long as your cold or sinusitis symptoms persist. Because it is drug-free, there is no risk of dependency or rebound congestion with continued use. However, if your symptoms have not improved after 7 days, or if you develop a high fever, severe facial pain, or green/yellow nasal discharge, see your GP as you may need further treatment.

What is the difference between Sterimar Stop & Protect and standard Sterimar?

Standard Sterimar is a plain isotonic saline spray designed for everyday nasal hygiene and general nasal care. Sterimar Stop & Protect is specifically formulated for use during colds and sinusitis, with a targeted spray mechanism designed to reach deeper into the nasal passages to help clear congestion more effectively. Both are drug-free, but Stop & Protect is the more targeted option for acute symptoms.

Can I use Sterimar Stop & Protect alongside other nasal sprays or medicines?

Yes — in fact, using Sterimar first to clear the nasal passages can improve the absorption and effectiveness of other nasal preparations such as corticosteroid sprays. Apply Sterimar, wait a few minutes, then use your other nasal product. No clinically significant drug interactions are known for isotonic saline nasal sprays, but always check with your pharmacist if you are unsure.

Who is eligible to use Sterimar Stop & Protect?

Sterimar Stop & Protect is suitable for adults and children aged 3 years and over who are experiencing nasal congestion due to a cold, sinusitis, or upper respiratory tract infection. It is not recommended for children under 3 or for anyone with a known allergy to its ingredients. People who have had recent nasal surgery should consult their GP before use. You can find related products in our ear, nose and throat collection.

What are the alternatives to Sterimar Stop & Protect for sinusitis?

Alternatives include other saline nasal sprays such as Neilmed Sinus Rinse or Nasacort (a corticosteroid spray for inflammation), as well as medicated decongestant sprays like Otrivine for short-term use. The NHS also recommends steam inhalation and staying well hydrated as self-care measures for sinusitis. For a broader range of options, browse our cold and flu collection.

Does Sterimar Stop & Protect contain any preservatives or additives?

Sterimar Stop & Protect is formulated with natural sea water and does not contain preservatives, which makes it well tolerated even for people with sensitive nasal passages. The isotonic concentration closely matches the body's own fluids, reducing the risk of irritation. Always check the full ingredient list on the packaging if you have known sensitivities.

What is the latest evidence on saline nasal irrigation for sinusitis?

Clinical evidence supports saline nasal irrigation as an effective and safe adjunct treatment for acute and chronic sinusitis, with the NHS recommending it as part of self-care for sinus symptoms. Studies published in peer-reviewed literature have shown that regular nasal saline irrigation can reduce symptom severity, decrease reliance on antibiotics, and improve quality of life in sinusitis sufferers. It is widely regarded as a first-line non-pharmacological intervention by ENT specialists.

How Should You Use Sterimar Stop & Protect?

Using Sterimar Stop & Protect correctly ensures you get the most from each spray. Before you begin, blow your nose gently to remove any loose mucus — this helps the saline solution reach further into the nasal passages and work more effectively.

What Is the Correct Dose of Sterimar Stop & Protect?

The dose varies slightly depending on the reason for use and the age of the person using it. As a general rule, 1 to 2 sprays per nostril is sufficient for each application. Do not exceed 6 applications per day unless advised by a healthcare professional.

When Is the Best Time to Use Sterimar Stop & Protect?

There is no single fixed time of day that is best — use the spray whenever your nose feels blocked or congested. Many people find it particularly helpful first thing in the morning to clear overnight mucus build-up, and again before bed to help with breathing during sleep. Using it before applying any other nasal medication can also improve how well that medication is absorbed.

If you are using it to manage sinusitis symptoms, spacing applications evenly throughout the day — for example, morning, midday, and evening — tends to give the most consistent relief.

How Long Can You Use Sterimar Stop & Protect For?

Because Sterimar Stop & Protect is drug-free, it does not carry the same time restrictions as medicated decongestant sprays. You can continue using it for as long as your symptoms persist without risk of rebound congestion. However, if your cold or sinusitis symptoms have not improved after 7 days of regular use, or if they worsen at any point, you should consult your GP. Persistent sinusitis may require antibiotic treatment or further investigation by an ENT specialist.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

What Are the Most Common Side Effects of Sterimar Stop & Protect?

Because Sterimar Stop & Protect contains only isotonic saline — essentially purified sea water — it is one of the most well-tolerated nasal preparations available. Serious side effects are very rare. That said, some people do notice mild reactions, particularly when they first start using the spray or if they use it more frequently than recommended.

  • Mild nasal irritation or discomfort immediately after spraying
  • Temporary sensation of pressure or fullness in the nose
  • Slight watering of the eyes
  • Sneezing shortly after application

What Are the Less Common Side Effects of Sterimar Stop & Protect?

Less commonly, a small number of users report the following. These are generally mild and short-lived, resolving on their own without any treatment.

  • A temporary stinging or burning sensation inside the nasal passages
  • Minor nosebleed, particularly in people with fragile or dry nasal blood vessels
  • Increased nasal discharge immediately after use as mucus is loosened

What Are the Serious Side Effects of Sterimar Stop & Protect?

Serious adverse reactions to isotonic saline nasal sprays are extremely rare. However, if you experience any of the following after using this product, stop use immediately and seek urgent medical attention:

  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Severe skin rash or hives
  • Dizziness or feeling faint

These symptoms could indicate a rare allergic reaction (anaphylaxis) and require emergency treatment. Call 999 or go to your nearest A&E department immediately.

What Should You Do If You Experience Side Effects?

For mild side effects such as nasal irritation or sneezing, no specific action is usually needed — these typically resolve within a few minutes of use. If you find the spray consistently causes discomfort, try reducing the frequency of use or check that you are using the correct technique. Tilting your head slightly forward rather than back can help the solution drain more comfortably.

If side effects persist or concern you, stop using the product and speak to your pharmacist or GP. You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Sterimar Stop & Protect Interact With Other Medicines?

No clinically significant drug interactions are known for isotonic saline nasal sprays. Because the active ingredient is simply sodium chloride solution and is not absorbed systemically, it does not interfere with oral medications or other treatments. If you are using other nasal preparations — such as a corticosteroid spray or antihistamine nasal spray — it is generally recommended to use Sterimar first to clear the nasal passages, then wait a few minutes before applying the other product. This can help improve the effectiveness of the second preparation.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

We’re a safe and
regulated UK service

Registered Pharmacy Badge

Lowest Price Guarantee

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

100% discreet packaging

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

Agent

Need help?
Talk to our friendly experts now

How our service works

Service Setup

Service setup

Discreet Packaging

Discreet packaging

Express Delivery

Express delivery