Skip to product information
1 of 3

  • Images are for illustration purposes only

Fusion Allergy Nasal Spray 20ml

Fusion Allergy Nasal Spray 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

  • ✔️ Relieves nasal congestion, sneezing, and runny nose
  • ✔️ Contains triamcinolone acetonide, a clinically proven corticosteroid
  • ✔️ Suitable for adults and children aged 6 and over
  • ✔️ Works locally in nasal passages with minimal systemic absorption
  • ✔️ Effective for both seasonal hay fever and year-round allergic rhinitis

Price Checker

Regular price £6.99
Sale price £6.99
Sale Sold out
  • Lowest price guarantee
  • Includes FREE private prescription

Purchase Options

View full details

 

What Is an Allergy Nasal Spray and How Can It Help You?

 

If you've ever spent a spring morning sneezing uncontrollably or struggled to breathe through a blocked nose during pollen season, you'll know how disruptive allergic rhinitis can be. Fusion Allergy Nasal Spray 20ml is an over-the-counter allergy nasal spray designed to tackle exactly those symptoms — nasal congestion, sneezing, itching, and a runny nose caused by seasonal or perennial allergic rhinitis. At just £6.99, it offers a straightforward, clinically recognised option for managing allergy symptoms without needing a prescription. You can browse the full range of allergy and hay fever treatments at Cured Pharmacy if you'd like to compare your options.

Allergic rhinitis affects millions of people in the UK every year. The NHS estimates that hay fever alone affects around 1 in 5 people at some point in their lives. Symptoms can range from mildly irritating to genuinely debilitating, particularly during high pollen counts. Fusion Allergy Nasal Spray contains triamcinolone acetonide, a well-established intranasal corticosteroid that has been used in the management of allergic rhinitis for many years.

 

How Does Fusion Allergy Nasal Spray Work?

 

Triamcinolone acetonide works locally inside the nasal passages rather than being absorbed into the bloodstream in significant amounts. This targeted action is one reason intranasal corticosteroids are considered a first-line treatment for allergic rhinitis by clinical guidelines. Here's how it works step by step:

  • When you're exposed to an allergen (such as pollen, dust mites, or pet dander), your immune system releases inflammatory chemicals including histamine.
  • These chemicals cause the lining of your nasal passages to swell, producing mucus and triggering sneezing.
  • Triamcinolone acetonide suppresses this inflammatory response by binding to glucocorticoid receptors in nasal tissue.
  • Over time — usually within a few days of regular use — nasal swelling reduces, mucus production decreases, and symptoms improve.

It's worth noting that this spray works best when used consistently and regularly, rather than just on days when symptoms feel particularly bad. Think of it as a preventative measure as much as a treatment.

 

Who Should Use Fusion Allergy Nasal Spray?

 

This spray is suitable for a broad range of people dealing with nasal allergy symptoms. It's particularly useful if oral antihistamines alone haven't been enough to control your nasal congestion. That said, it's not appropriate for everyone, so it's worth checking the criteria below.

Fusion Allergy Nasal Spray is generally suitable for:

  • Adults and children aged 6 years and over
  • People with seasonal allergic rhinitis (hay fever) triggered by pollen
  • People with perennial allergic rhinitis caused by year-round triggers such as dust mites or pet hair
  • Those who prefer a nasal spray to oral tablets or liquid antihistamines

 

How Does Fusion Allergy Nasal Spray Compare to Other Options?

 

Feature Fusion Allergy Nasal Spray Oral Antihistamine Tablet
Active ingredient type Intranasal corticosteroid Antihistamine (e.g. cetirizine, loratadine)
Primary action Reduces nasal inflammation locally Blocks histamine systemically
Best for Nasal congestion, runny nose, sneezing Itchy eyes, skin reactions, sneezing
Onset of effect Full effect within a few days of regular use Often within 1–2 hours of a single dose

 

Is Fusion Allergy Nasal Spray Suitable for Long-Term Use?

 

Intranasal corticosteroids like triamcinolone acetonide are generally considered safe for use throughout the allergy season when used as directed. Because the active ingredient acts locally in the nasal passages, systemic absorption is minimal at recommended doses. However, if you find yourself relying on an allergy nasal spray for more than three months continuously, it's a good idea to speak with your GP to rule out any underlying conditions that may need further investigation.

If you also experience eye symptoms alongside nasal allergy symptoms, you might find it helpful to explore eye care products designed for allergy-related eye irritation. Combining treatments can sometimes give more complete symptom relief during peak allergy season.

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.

Fusion Allergy Nasal Spray 20ml specifications
Treatment category Allergic rhinitis / Hay fever
Mechanism of action Intranasal corticosteroid — reduces nasal inflammation
Effective for Nasal congestion, sneezing, runny nose, nasal itching
Suitable for Adults and children aged 6 years and over
Active ingredient Triamcinolone acetonide
Pack size 20ml
UK classification General Sale / Pharmacy (P) medicine
Drug class Corticosteroid (intranasal)
Preparation Aqueous nasal spray suspension
Route of administration Intranasal

Specifications of Fusion Allergy Nasal Spray 20ml

 

What Is Fusion Allergy Nasal Spray and What Is It Used For?

 

Fusion Allergy Nasal Spray 20ml contains triamcinolone acetonide, an intranasal corticosteroid used to relieve the symptoms of seasonal and perennial allergic rhinitis in adults and children aged 6 and over. Seasonal allergic rhinitis — commonly known as hay fever — is triggered by outdoor allergens such as grass, tree, or weed pollen. Perennial allergic rhinitis occurs year-round and is typically caused by indoor allergens like house dust mites, mould spores, or pet dander. Symptoms of both conditions include a blocked or runny nose, sneezing, and nasal itching. This allergy nasal spray helps to reduce the inflammation responsible for these symptoms when used regularly as directed.

 

What Do You Need to Know Before Using Fusion Allergy Nasal Spray?

 

Before using this spray, read the following carefully. Some people should not use this product or should seek medical advice first.

Do not use Fusion Allergy Nasal Spray if you:

  • Are allergic to triamcinolone acetonide or any other ingredient in the spray
  • Are under 6 years of age
  • Have a current nasal infection that has not been treated
  • Have recently had nasal surgery or a nasal injury — wait until fully healed before using

Speak to your doctor or pharmacist before use if you:

  • Are pregnant or breastfeeding
  • Have tuberculosis (TB) or any other untreated infection
  • Have glaucoma or cataracts, or a family history of these conditions
  • Are already using other corticosteroid medicines (including creams, inhalers, or tablets)
  • Are taking medicines that affect the immune system

Known drug interactions:

  • Ritonavir and other strong CYP3A4 inhibitors may increase triamcinolone levels in the body — seek medical advice before combining
  • Other corticosteroids used at the same time may increase the risk of systemic side effects
  • No significant interactions are expected at recommended doses with most common over-the-counter medicines

 

How Should You Use Fusion Allergy Nasal Spray?

 

Always use this spray exactly as described in the product leaflet. If you're unsure about anything, ask your pharmacist. For best results, use it at the same time each day and don't skip doses during your allergy season.

  1. Shake the bottle gently before each use.
  2. Blow your nose gently to clear the nasal passages.
  3. Remove the protective cap from the nozzle.
  4. Tilt your head slightly forward — do not tilt it back.
  5. Insert the nozzle carefully into one nostril, pointing it slightly away from the nasal septum (the central dividing wall).
  6. Press the pump down firmly while breathing in gently through your nose.
  7. Breathe out through your mouth.
  8. Repeat in the other nostril.
  9. Wipe the nozzle clean and replace the cap after use.
Age Group Dose Frequency
Adults and children aged 12 and over 2 sprays into each nostril Once daily
Children aged 6–11 years 1 spray into each nostril Once daily (under adult supervision)
Children under 6 years Not recommended

If you're managing multiple allergy symptoms alongside nasal congestion, you may also want to explore the wider range of ear, nose, and throat products available at Cured Pharmacy.

 

What Are the Possible Side Effects of Fusion Allergy Nasal Spray?

 

Like all medicines, Fusion Allergy Nasal Spray can cause side effects, although not everyone experiences them. Most side effects are mild and localised to the nasal area.

Common side effects (may affect up to 1 in 10 people):

  • Nasal irritation or burning sensation
  • Sneezing shortly after application
  • Headache
  • Unpleasant taste or smell

Less common side effects:

  • Nosebleeds (epistaxis)
  • Dry or sore throat
  • Nasal dryness or crusting
  • Nasal septum perforation (rare, with prolonged use)

If you experience any signs of an allergic reaction — such as swelling of the face, lips, or throat, difficulty breathing, or a severe rash — stop using the spray immediately and seek urgent medical attention.

 

How Should You Store Fusion Allergy Nasal Spray?

 

  • Store below 25°C in a cool, dry place
  • Keep the bottle upright when not in use
  • Do not freeze
  • Keep out of the reach and sight of children
  • Do not use after the expiry date printed on the label
  • Do not share your nasal spray with anyone else
  • Dispose of any unused product safely — ask your pharmacist how

If you're looking for additional support during allergy season, the cold and flu section at Cured Pharmacy includes products that can help manage overlapping symptoms such as nasal congestion and sore throat.

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 Fusion Allergy Nasal Spray online in the UK?

You can buy Fusion Allergy Nasal Spray 20ml directly from Cured Pharmacy, a UK GPhC-registered online pharmacy, for just £6.99. It's available as an over-the-counter product, so no prescription is needed. Simply add it to your basket and it will be dispatched to your door. You can also browse the full allergy and hay fever collection for additional options.

How does Fusion Allergy Nasal Spray work in the body?

Fusion Allergy Nasal Spray contains triamcinolone acetonide, a corticosteroid that acts locally within the nasal passages to reduce inflammation caused by allergens. It suppresses the release of inflammatory chemicals — including histamine — that cause nasal swelling, congestion, and sneezing. Because it works locally rather than systemically, it has a good safety profile at recommended doses when used as directed.

How do I use Fusion Allergy Nasal Spray step by step?

Shake the bottle gently, blow your nose, then tilt your head slightly forward. Insert the nozzle into one nostril, pointing it slightly away from the nasal septum, and press the pump while breathing in gently through your nose. Repeat in the other nostril, then wipe the nozzle and replace the cap. Always follow the instructions in the product leaflet for best results.

What is the correct dose of Fusion Allergy Nasal Spray for adults?

For adults and children aged 12 and over, the recommended dose is 2 sprays into each nostril once daily. This gives a total of 4 sprays per day. Do not exceed the recommended dose, and if symptoms do not improve after a few weeks of regular use, speak to your pharmacist or GP.

Can children use Fusion Allergy Nasal Spray?

Yes, Fusion Allergy Nasal Spray is suitable for children aged 6 years and over. Children aged 6 to 11 should use 1 spray into each nostril once daily, under adult supervision. It should not be used in children under 6 years of age. If you're unsure whether it's appropriate for your child, speak to a pharmacist or GP before use.

What are the side effects of Fusion Allergy Nasal Spray?

Common side effects include nasal irritation, sneezing after application, headache, and an unpleasant taste or smell. Less commonly, nosebleeds, nasal dryness, or a sore throat may occur. Most side effects are mild and tend to improve as your body adjusts to the spray. If side effects persist or you experience any signs of an allergic reaction, stop use and seek medical advice promptly.

How long does it take for Fusion Allergy Nasal Spray to start working?

You may notice some improvement within the first day or two, but the full anti-inflammatory effect of triamcinolone acetonide typically builds up over several days of consistent use. For best results, start using the spray a few days before your allergy season begins rather than waiting until symptoms are already severe. Regular daily use is more effective than using it only when symptoms flare up.

Who is eligible to use Fusion Allergy Nasal Spray?

This spray is suitable for adults and children aged 6 and over who experience symptoms of seasonal or perennial allergic rhinitis. It is not suitable for children under 6, people with untreated nasal infections, or those who have recently had nasal surgery. People who are pregnant, breastfeeding, or taking other corticosteroid medicines should speak to a doctor or pharmacist before use.

What happens if I miss a dose of Fusion Allergy Nasal Spray?

If you forget to use your spray, apply it as soon as you remember — unless it's almost time for your next scheduled dose, in which case simply skip the missed dose. Do not use a double dose to make up for a missed one. Consistent daily use gives the best results, so try to build it into your morning routine during allergy season.

How long can you use Fusion Allergy Nasal Spray for?

Fusion Allergy Nasal Spray can be used throughout the allergy season, typically for up to 3 months. If your symptoms persist beyond this period or you feel you need to use it year-round, consult your GP for a full assessment. Long-term use of intranasal corticosteroids should be monitored by a healthcare professional, particularly in children.

Can I use Fusion Allergy Nasal Spray alongside antihistamine tablets?

Yes, intranasal corticosteroid sprays and oral antihistamines can generally be used together and are sometimes recommended in combination for more complete allergy symptom control. The nasal spray targets nasal inflammation directly, while antihistamines can help with symptoms like itchy eyes and skin reactions. Always check with your pharmacist before combining treatments to make sure it's appropriate for you.

Is Fusion Allergy Nasal Spray safe to use during pregnancy?

If you are pregnant or trying to become pregnant, you should speak to your GP or midwife before using any nasal corticosteroid spray, including this one. While intranasal corticosteroids are generally considered low-risk due to minimal systemic absorption, the decision to use any medicine during pregnancy should always be made with medical guidance. Your doctor can advise on the safest option for managing your allergy symptoms.

What are alternatives to Fusion Allergy Nasal Spray?

Alternatives include other intranasal corticosteroid sprays such as beclometasone dipropionate or fluticasone propionate nasal sprays, which are also available over the counter. Oral antihistamines such as cetirizine or loratadine are another option, particularly for symptoms beyond the nose. You can explore the full range of ear, nose, and throat treatments at Cured Pharmacy to find the most suitable product for your needs.

Does Fusion Allergy Nasal Spray interact with other medicines?

At recommended doses, Fusion Allergy Nasal Spray is unlikely to interact with most common over-the-counter medicines. However, strong CYP3A4 inhibitors such as ritonavir (used in HIV treatment) may increase triamcinolone levels in the body, which could increase the risk of side effects. If you are taking any prescription medicines or other corticosteroids, speak to your pharmacist or GP before starting this spray.

What are the latest findings on intranasal corticosteroids for allergic rhinitis?

Intranasal corticosteroids remain the most clinically effective first-line treatment for moderate-to-severe allergic rhinitis according to current NHS and NICE guidance. They are consistently shown to outperform oral antihistamines for nasal congestion specifically. Research continues to support their safety profile for seasonal use in both adults and children aged 6 and over when used at recommended doses.

How Should You Use Fusion Allergy Nasal Spray?

Using Fusion Allergy Nasal Spray correctly makes a real difference to how well it works. Before you start, blow your nose gently to clear the nasal passages. This helps the spray reach the nasal lining more effectively.

Follow these steps each time you use the spray:

What Is the Correct Dose of Fusion Allergy Nasal Spray?

Always use the lowest effective dose for the shortest time necessary to control your symptoms. The table below summarises the recommended doses by age group and indication.

When Is the Best Time to Use Fusion Allergy Nasal Spray?

The spray is most effective when used at the same time each day, as this maintains a consistent level of the active ingredient in the nasal tissue. Most people find it easiest to use in the morning, ideally before going outdoors during high pollen periods. If you know your allergy season is approaching, starting the spray a few days early — before symptoms begin — can help reduce the severity of your reaction.

Avoid using the spray immediately before lying down, as this can cause the liquid to drain into the throat rather than staying in contact with the nasal lining where it's needed.

How Long Can You Use Fusion Allergy Nasal Spray For?

Fusion Allergy Nasal Spray is intended for use during the allergy season, typically for a period of up to 3 months. If your symptoms are seasonal, you can stop using the spray once pollen counts drop and your symptoms resolve. For perennial allergic rhinitis, longer-term use may be appropriate, but this should be discussed with your GP or pharmacist to ensure it remains suitable for you.

Children using this spray should be reviewed regularly by a healthcare professional to monitor growth and ensure the treatment remains appropriate. Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

Customer Reviews

Based on 2 reviews
100%
(2)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
v
ventura

Good, provided you use it early on. Helps relieve irritation and blocked nose caused by dust mites and other allergens. Also good for hayfever.

A
Anonymous

A great product sorts out my post nasal drip
Without resorting to steroids

What Are the Most Common Side Effects of Fusion Allergy Nasal Spray?

Most people who use Fusion Allergy Nasal Spray tolerate it well, particularly when it's used correctly and at the recommended dose. The most frequently reported side effects are localised to the nose and upper airways, and they often settle down after the first few days of use.

  • Nasal irritation or a burning sensation inside the nose
  • Sneezing shortly after applying the spray
  • Headache
  • Unpleasant taste or smell following application

What Are the Less Common Side Effects of Fusion Allergy Nasal Spray?

Some people may experience side effects that are less frequent but still worth being aware of. These are generally mild and reversible once you stop using the spray or adjust your technique.

  • Nosebleeds (epistaxis) — particularly with prolonged use or incorrect technique
  • Nasal dryness or crusting inside the nostrils
  • Dry or sore throat
  • Nasal septum perforation — rare, associated with long-term use or incorrect application technique
  • Temporary changes in sense of smell or taste

What Are the Serious Side Effects of Fusion Allergy Nasal Spray?

Serious side effects are uncommon at recommended doses, but you should be aware of them. Prolonged use of corticosteroid nasal sprays — especially at higher than recommended doses — may occasionally affect the adrenal glands or slow growth in children. If you notice any of the following, stop using the spray and seek medical attention promptly:

  • Signs of an allergic reaction: swelling of the face, lips, tongue, or throat; difficulty breathing; severe rash or hives
  • Vision changes, including blurred vision — this may indicate raised eye pressure
  • Signs of adrenal suppression: unusual tiredness, weakness, dizziness, or weight loss
  • Slowed growth in children (with long-term use)

What Should You Do If You Experience Side Effects?

If you develop mild nasal irritation or sneezing, this often improves with continued use and correct application technique. Make sure you're not pointing the nozzle directly at the nasal septum, as this is a common cause of irritation and nosebleeds. If side effects are persistent, bothersome, or worsen over time, stop using the spray 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 Fusion Allergy Nasal Spray Interact With Other Medicines?

At recommended doses, Fusion Allergy Nasal Spray is unlikely to cause significant interactions with most common medicines. However, strong CYP3A4 inhibitors — such as ritonavir, used in HIV treatment — can increase the concentration of triamcinolone in the body, potentially raising the risk of systemic corticosteroid side effects. Using this spray alongside other corticosteroid medicines (such as steroid inhalers, creams, or tablets) may also increase the overall corticosteroid load on the body. Always tell your pharmacist or GP about all medicines you are currently taking before starting a new treatment. 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