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Fusion Allergy Day & Night Eye Gel

Fusion Allergy Day & Night Eye Gel

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  • ✔️ Soothes itchy, red eyes caused by hay fever and allergies
  • ✔️ Dual day and night formulas for 24-hour eye relief
  • ✔️ Sodium hyaluronate locks in moisture for lasting comfort
  • ✔️ Suitable for adults and children aged 6 and over
  • ✔️ Gel formulation stays on the eye surface longer than drops

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What Is Fusion Allergy Day & Night Eye Gel?

 

If your eyes are constantly itching, watering, or turning red every time pollen season hits, you are far from alone. Allergic conjunctivitis — the medical term for eye inflammation triggered by allergens — affects millions of people across the UK each year. Fusion Allergy Day & Night Eye Gel is an over-the-counter allergy eye gel designed to soothe and protect irritated eyes around the clock, whether you are dealing with hay fever, dust mite sensitivity, or pet dander reactions. You can find it alongside a full range of products in our eye care collection.

Unlike standard eye drops, which can feel thin and wash away quickly, this gel formulation clings to the ocular surface for longer, providing sustained relief. At just £11.99, it offers a practical, accessible option for anyone who needs consistent symptom management without a prescription.

 

How Does Fusion Allergy Day & Night Eye Gel Work?

 

The gel works by creating a protective, lubricating film over the surface of the eye. This helps to physically wash away allergen particles — such as pollen or dust — while simultaneously reducing the inflammatory response that causes itching and redness. Sodium hyaluronate, a key ingredient, is a naturally occurring substance that attracts and retains moisture on the ocular surface, helping to stabilise the tear film and reduce dryness.

  • Forms a soothing barrier over the conjunctiva and cornea
  • Helps flush allergen particles from the eye surface
  • Sodium hyaluronate retains moisture, reducing dryness and irritation
  • Thicker gel consistency provides longer contact time than standard drops
  • Day formula is lighter for daytime clarity; night formula is thicker for overnight relief

 

Who Should Use Fusion Allergy Day & Night Eye Gel?

 

This gel is suitable for adults and children aged 6 and over who experience eye symptoms related to allergic reactions. It is particularly useful during high pollen seasons, but it can also help those with year-round sensitivities. If you are already managing hay fever with antihistamine tablets or nasal sprays, adding a targeted eye gel can address the ocular symptoms that oral treatments sometimes miss. You might also want to explore our allergy and hay fever collection for complementary products.

  • Adults and children aged 6 and over with allergic conjunctivitis
  • Hay fever sufferers experiencing itchy, watery, or red eyes
  • People sensitive to dust mites, pet dander, or mould spores
  • Those who find standard eye drops too short-acting for adequate relief

 

How Does Fusion Allergy Eye Gel Compare to Standard Eye Drops?

 

Feature Fusion Allergy Day & Night Eye Gel Standard Antihistamine Eye Drops
Formulation Gel (thicker, longer-lasting) Aqueous drops (thinner, shorter contact)
Duration of relief Extended — suitable for day and night use Shorter — may require more frequent dosing
Day & Night variants Yes — separate day and night formulas Typically one formula only
Suitable for dry eyes Yes — sodium hyaluronate aids lubrication Variable — depends on formulation

 

Is Fusion Allergy Day & Night Eye Gel Safe to Store and Use Long-Term?

 

Once opened, the gel should be used within 28 days and stored below 25°C, away from direct sunlight. Keep it out of reach of children. The dual-format system — a lighter gel for daytime and a thicker formulation for overnight use — means you are not compromising your vision during the day while still getting meaningful relief at night. This allergy eye gel is preservative-free in its formulation approach, which makes it gentler for those with sensitive eyes who react to preservatives found in some other products.

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 Day & Night Eye Gel specifications
Treatment category Allergic conjunctivitis / Ocular allergy relief
Mechanism of action Lubricating gel barrier; allergen removal; moisture retention via sodium hyaluronate
Effective for Itchy, red, watery eyes caused by allergic reactions
Suitable for Adults and children aged 6 and over
Active ingredient Sodium hyaluronate
UK classification General Sale / Over-the-counter (OTC)
Preparation Ophthalmic gel
Route of administration Topical ocular (applied directly to the eye)

Specifications of Fusion Allergy Day & Night Eye Gel

 

What Is Fusion Allergy Day & Night Eye Gel and What Is It Used For?

 

Fusion Allergy Day & Night Eye Gel is an over-the-counter ophthalmic gel used to relieve the symptoms of allergic conjunctivitis. These symptoms include itching, redness, watering, and a gritty or burning sensation in the eyes — all of which are common responses to allergens such as grass pollen, tree pollen, dust mites, and animal fur. The NHS recognises allergic conjunctivitis as one of the most frequent complications of hay fever, often occurring alongside a runny nose and sneezing.

The gel is available in two formulations: a lighter day gel for use during waking hours and a thicker night gel designed to provide sustained relief while you sleep. Together, they offer continuous symptom management across a full 24-hour period.

 

What Do You Need to Know Before Using Fusion Allergy Day & Night Eye Gel?

 

Before using this gel, it is important to check whether it is appropriate for you. Do not use it if any of the following apply:

  • You are allergic to any of the ingredients in the formulation
  • You have an eye infection — the gel is not an antibiotic and will not treat bacterial or viral conjunctivitis
  • You have recently had eye surgery — seek medical advice first
  • You are under 6 years of age
  • You have a known eye condition such as glaucoma — consult your GP or ophthalmologist before use

There are also some important warnings to be aware of:

  • Remove contact lenses before applying the gel and wait at least 15 minutes before reinserting them
  • Do not touch the tip of the applicator to your eye or any other surface, as this can introduce contamination
  • If you experience worsening redness, pain, or changes in vision, stop use and seek medical advice promptly
  • Discard the product 28 days after first opening, even if gel remains

No significant drug interactions have been identified for topical ocular lubricant gels of this type. However, if you are using other eye drops or gels, allow at least 5 minutes between applications and always apply the thinner preparation first.

 

How Should You Use Fusion Allergy Day & Night Eye Gel?

 

Using the gel correctly makes a real difference to how well it works. Follow these steps each time you apply it:

  1. Wash your hands thoroughly with soap and water before handling the product
  2. Remove contact lenses if you wear them
  3. Tilt your head back slightly and look upward
  4. Gently pull down your lower eyelid to create a small pocket
  5. Squeeze one drop of gel into the pocket — avoid touching the eye or eyelid with the tip
  6. Close your eye gently and blink a few times to spread the gel evenly
  7. Repeat in the other eye if needed
  8. Replace the cap immediately after use
Indication Age Group Dose Frequency
Allergic conjunctivitis (day) Adults & children 6+ 1 drop per eye Up to 4 times daily
Allergic conjunctivitis (night) Adults & children 6+ 1 drop per eye Once at bedtime
Under 6 years Children under 6 Not recommended — seek medical advice

 

What Are the Possible Side Effects of Fusion Allergy Day & Night Eye Gel?

 

Most people use this gel without any problems. Side effects, when they do occur, are usually mild and temporary. If you are concerned about any reaction, stop using the product and speak to a pharmacist or GP.

Common side effects:

  • Temporary blurred vision immediately after application — this usually clears within a few minutes
  • Mild stinging or a brief burning sensation on first contact
  • A slight sticky feeling around the eyelids, particularly with the night formula

Less common side effects:

  • Increased watering of the eye
  • Redness or irritation that was not present before use — this may indicate sensitivity to an ingredient
  • Eyelid swelling in rare cases

If you notice any sudden change in vision, significant eye pain, or signs of an allergic reaction such as swelling of the face or difficulty breathing, seek urgent medical attention. You can find further guidance on managing eye conditions through our eye care collection page.

 

How Should You Store Fusion Allergy Day & Night Eye Gel?

 

  • Store below 25°C in a cool, dry place away from direct sunlight
  • Do not freeze the product
  • Keep out of reach and sight of children
  • Discard 28 days after opening, regardless of how much gel remains
  • Do not use after the expiry date printed on the packaging
  • Do not share the product with others — this reduces the risk of cross-contamination

If you are managing broader allergy symptoms alongside your eye care, it is worth exploring our allergy and hay fever range for additional support products.

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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 Day & Night Eye Gel online in the UK?

You can buy Fusion Allergy Day & Night Eye Gel directly from Cured Pharmacy for £11.99 with no prescription required. It is available as an over-the-counter product and ships across the UK. Browse our full eye care collection for related products.

How does Fusion Allergy Day & Night Eye Gel work in the eye?

The gel forms a lubricating, protective layer over the surface of the eye, helping to physically remove allergen particles such as pollen and dust while reducing the inflammatory response that causes itching and redness. Sodium hyaluronate within the formulation attracts and retains moisture, stabilising the tear film and providing longer-lasting comfort than thinner aqueous drops. The thicker consistency means it stays in contact with the eye surface for longer, which is particularly useful for overnight relief.

How do I apply Fusion Allergy Day & Night Eye Gel correctly?

Wash your hands before use, then tilt your head back and gently pull down your lower eyelid to create a small pocket. Squeeze one drop of gel into the pocket without touching the tip to your eye, then blink gently to spread it across the surface. Replace the cap immediately after use to prevent contamination.

When is the best time to use Fusion Allergy Day & Night Eye Gel?

Use the day formula up to four times during waking hours whenever symptoms flare — for example, after coming indoors from a high-pollen environment. Apply the night formula once at bedtime to provide sustained lubrication and relief while you sleep. Consistent use throughout the allergy season tends to give the best results.

Can I use Fusion Allergy Day & Night Eye Gel with contact lenses?

You should always remove contact lenses before applying the gel and wait at least 15 minutes before reinserting them. Applying the gel over lenses can cause discomfort and may affect lens performance or clarity. If you wear lenses regularly and suffer from allergic eye symptoms, speak to your optician about the most suitable approach.

Is Fusion Allergy Day & Night Eye Gel suitable for children?

The gel is suitable for adults and children aged 6 and over. It is not recommended for children under 6 years of age without specific medical advice. If your child is experiencing persistent eye symptoms, it is always worth speaking to a GP or pharmacist before starting any eye preparation.

What are the side effects of Fusion Allergy Day & Night Eye Gel?

The most commonly reported side effects are temporary blurred vision immediately after application and a mild stinging or burning sensation, both of which typically resolve within a few minutes. Less commonly, some people notice increased watering or mild redness, which may suggest sensitivity to an ingredient. If you experience significant pain, swelling, or any change in vision, stop use and seek medical advice promptly.

How long can I use Fusion Allergy Day & Night Eye Gel for?

You can use the gel throughout your allergy season as needed, provided symptoms are responding well. If your symptoms have not improved after 48 hours of use, or if they worsen at any point, you should consult a pharmacist or GP. Once opened, the product must be discarded after 28 days regardless of how much remains.

What is the difference between the day and night formulas?

The day formula has a lighter consistency that spreads quickly and is less likely to cause prolonged blurring, making it practical for use during waking hours when clear vision matters. The night formula is thicker, designed to stay in contact with the eye surface for longer while you sleep, providing sustained lubrication and relief through the night. Using both together gives you continuous, round-the-clock symptom management.

What happens if I miss a dose of Fusion Allergy Day & Night Eye Gel?

If you forget to apply the gel at your usual time, simply use it as soon as you remember. Do not apply a double dose to make up for a missed application — just continue with your normal routine. Because this is a topical product used for symptom relief rather than a systemic medicine, missing a single application is unlikely to cause any harm.

What are the alternatives to Fusion Allergy Day & Night Eye Gel?

Alternatives include antihistamine eye drops such as sodium cromoglicate or azelastine, which work by blocking the allergic response rather than simply lubricating the eye. Standard lubricant eye drops containing hypromellose or carbomer are also available, though they may not last as long as a gel formulation. Your pharmacist can help you choose the most appropriate option based on your specific symptoms and medical history.

Can I use Fusion Allergy Day & Night Eye Gel alongside antihistamine tablets for hay fever?

Yes — using a topical allergy eye gel alongside oral antihistamines is a common and generally safe approach recommended for people whose eye symptoms are not fully controlled by tablets alone. The gel targets the eye surface directly, while oral antihistamines work systemically. If you are looking for complementary hay fever treatments, explore our allergy and hay fever collection.

How should I store Fusion Allergy Day & Night Eye Gel?

Store the gel below 25°C in a cool, dry place away from direct sunlight and heat sources. Do not freeze it. Keep it out of reach of children, and always check the expiry date on the packaging before use. Once opened, discard after 28 days even if gel remains in the tube or bottle.

Is Fusion Allergy Day & Night Eye Gel safe to use during pregnancy?

If you are pregnant or breastfeeding, you should speak to your GP or pharmacist before using any eye preparation, including this gel. While topical ocular products have limited systemic absorption, it is always best to seek professional advice during pregnancy to ensure the product is appropriate for your individual circumstances.

What does the latest research say about sodium hyaluronate eye gels for allergies?

Sodium hyaluronate is well established in ophthalmic research as an effective ocular lubricant that helps stabilise the tear film and reduce surface inflammation. Studies published in peer-reviewed ophthalmology journals have shown it to be well tolerated and effective at reducing symptoms of ocular dryness and irritation, including those associated with allergic conjunctivitis. The NHS also recognises lubricant eye drops and gels as a first-line self-care option for mild to moderate allergic eye symptoms.

How Should You Use Fusion Allergy Day & Night Eye Gel?

Using the gel correctly ensures you get the most from each application and reduces the risk of contamination or irritation. Always wash your hands thoroughly before handling the product. Never share the gel with another person, and avoid touching the applicator tip to any surface, including your eye.

Follow these steps each time you apply the gel:

What Is the Correct Dose of Fusion Allergy Day & Night Eye Gel?

The dose is one drop per affected eye per application. Do not apply more than the recommended number of drops at each use — using extra gel will not improve results and may cause unnecessary blurring or discomfort. Always use the day formula during waking hours and switch to the night formula at bedtime.

When Is the Best Time to Use Fusion Allergy Day & Night Eye Gel?

Apply the day formula as soon as symptoms begin — for example, after spending time outdoors during high pollen periods, or after exposure to dust or pet dander. Using it proactively before known allergen exposure can also help reduce the severity of symptoms. The night formula is best applied as part of your bedtime routine, just before you close your eyes for sleep.

If you are using other eye drops or gels at the same time, leave at least 5 minutes between each product and always apply the thinner preparation first.

How Long Can You Use Fusion Allergy Day & Night Eye Gel For?

You can use the gel throughout your allergy season for as long as symptoms persist. There is no strict maximum duration for a lubricant-based allergy eye gel, but if your symptoms have not improved after 48 hours of consistent use, or if they worsen at any point, you should stop and seek advice from a pharmacist or GP. The product must be discarded 28 days after opening, so check the date you first opened it and replace it as needed during a long allergy season.

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

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What Are the Most Common Side Effects of Fusion Allergy Day & Night Eye Gel?

Most people use this gel without experiencing any problems. When side effects do occur, they are usually mild and short-lived. The most frequently reported reactions are directly related to the gel's thicker consistency compared to standard eye drops.

  • Temporary blurred vision immediately after application — this typically clears within 2 to 5 minutes
  • Mild stinging or a brief burning sensation on first contact with the eye
  • A slight sticky feeling around the eyelids, particularly after using the night formula
  • Temporary sensitivity to light immediately after application

These effects are generally harmless and do not require you to stop using the product. If blurring persists for longer than 10 minutes after application, or if stinging is severe, discontinue use and speak to a pharmacist.

What Are the Less Common Side Effects of Fusion Allergy Day & Night Eye Gel?

A smaller number of people may notice reactions that are less typical. These are worth being aware of, particularly if you have sensitive eyes or a history of reactions to eye preparations.

  • Increased watering or tearing of the eye
  • Redness or irritation that was not present before starting the gel — this may suggest sensitivity to one of the ingredients
  • Mild eyelid swelling or puffiness
  • A feeling of something in the eye (foreign body sensation) that does not resolve with blinking

If any of these persist or worsen, stop using the product and consult your pharmacist or GP.

What Are the Serious Side Effects of Fusion Allergy Day & Night Eye Gel?

Serious side effects are rare with topical ocular lubricant gels, but they can occur. You should seek urgent medical attention if you experience any of the following after using this product:

  • Sudden or significant change in vision that does not resolve
  • Severe eye pain or pressure
  • Signs of a serious allergic reaction — including swelling of the face, lips, or throat, difficulty breathing, or a widespread skin rash
  • Worsening redness or discharge from the eye, which may indicate an infection requiring treatment

Do not ignore these symptoms. Stop using the gel immediately and seek medical help.

What Should You Do If You Experience Side Effects?

For mild side effects such as temporary blurring or stinging, no specific action is usually needed — simply wait a few minutes and the sensation should pass. If you find the night formula causes too much blurring in the morning, try applying it slightly earlier in the evening. For any side effect that concerns you, or that does not resolve on its own, contact your pharmacist in the first instance. They can advise whether you should continue, switch to an alternative product, or see a GP.

Can Fusion Allergy Day & Night Eye Gel Interact With Other Medicines?

No significant interactions have been identified between this topical ocular gel and other medicines. However, if you are using other eye drops or gels — including prescribed preparations — you should leave at least 5 minutes between each product and apply the thinnest formulation first. Always tell your pharmacist about all medicines you are currently using, including over-the-counter products, to ensure there are no concerns specific to your situation.

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

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