Do I need a prescription to buy Zovirax 5% Cream?

No. Zovirax 5% Cream is a non-prescription product and can be ordered without a prescription. It is still dispensed by a registered pharmacist on DoctorOnCall.

What does Zovirax 5% Cream contain?

Zovirax 5% Cream is a cream containing Aciclovir 5% w/w. The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.

What pack sizes does Zovirax 5% Cream come in?

It is supplied in a pack size of 10g. Choose the pack size you need from the options shown on this page before adding the item to your cart.

Why is there no information here about what Zovirax 5% Cream is for?

This page is limited to product, safety and handling information in line with Malaysian rules on medicine information. If you want advice on whether this product suits you, book an online consultation with a doctor or pharmacist on DoctorOnCall.

How should I use Zovirax 5% Cream?

Use it exactly as stated on the pack label, without changing the amount or how often you use it. If anything on the label is unclear, check with a pharmacist before the first use, and read the Directions for Use section on this page.

Can I speak to a doctor or pharmacist about Zovirax 5% Cream before I buy it?

Yes. DoctorOnCall offers online consultations with licensed doctors and registered pharmacists, so you can ask about this product, your existing medicines, or anything on the label before you place an order.

What should I do if I notice side effects after using Zovirax 5% Cream?

Stop using the product and speak to a doctor or pharmacist about any reaction that concerns you. Seek medical care immediately for signs of a severe reaction such as difficulty breathing, swelling of the face, lips or throat, or a widespread rash. Reported reactions are listed in the Side Effects section on this page.

How long will delivery take?

Within Malaysia, standard delivery takes 3 to 5 working days. Same-day delivery is available in the Klang Valley for orders placed before 12pm; orders placed after 12pm arrive by the end of the next day. Orders to Singapore are sent as international deliveries and take 5 to 9 working days. A lump-sum shipping and handling fee applies to every overseas delivery and is shown at checkout.

What payment methods can I use?

Customers in Malaysia can pay by FPX online banking, credit or debit card (Visa and Mastercard), and supported e-wallets including Touch ‘n Go eWallet, GrabPay and ShopeePay. FPX and local e-wallets are tied to Malaysian bank and wallet accounts, so if your delivery address is in Singapore, use the payment options displayed at checkout for that address rather than assuming the same list applies.

Can Zovirax 5% Cream be delivered to Singapore?

Yes. DoctorOnCall ships to Singapore as an international order dispatched from Malaysia, arriving in 5 to 9 working days with a lump-sum shipping and handling fee. Singapore’s Health Sciences Authority (HSA) allows personal imports of up to three months’ supply of a medicine for your own use or an immediate family member’s, as long as it contains no controlled drugs, psychotropic substances or prohibited items. Keep the product in its original labelled packaging and keep a copy of your prescription or doctor’s letter with it. Quantities above three months’ supply, and medicines containing controlled substances, require prior HSA approval.

Is Zovirax 5% Cream registered with the authorities?

Products listed on DoctorOnCall are registered with Malaysia’s Ministry of Health for supply in Malaysia, and each pack carries its MAL registration number. An order delivered to Singapore arrives as a personal import of a Malaysia-registered product; HSA product registration is not required for personal-use quantities, but it is also not the same as a product registered for sale in Singapore. If you need a locally registered Singapore product, buy it from a pharmacy in Singapore.

Who do I contact if there is a problem with my order?

DoctorOnCall’s customer care team handles order, delivery and product queries through the contact channels on the site, including WhatsApp and the online help centre. For deliveries to Singapore, allow more time before chasing an order than you would for a local Malaysian delivery, as the parcel passes through customs clearance and tracking updates can appear later in the journey.

Zovirax 5% Cream | aciclovir | cold sore herpes antiviral cream | DoctorOnCall Malaysia

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Zovirax 5% Cream

Brand GSK

(0 Reviews)

Fast Delivery
Muslim-Friendly
FDA Approved
Secure Payment

Weight

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Reviewed byDr. Mohd Izzat Amir Bin AwangDoctor of Medicine (MD), University of Mansoura - Manchester

Written byDr. Chong Zhan PongDoctor of Medicine (MD), International Medical University (IMU)

Last updated: October 15, 2026

Overview

Zovirax 5% Cream is supplied as a cream, with Aciclovir 5% w/w. It is supplied in a pack size of 10g.

No prescription is required for this product, as it is a non-prescription medicine. This page is limited to product, safety and handling information.

If you would like guidance before buying, you can speak to a doctor or pharmacist through an online consultation on DoctorOnCall. Orders are dispensed by a registered pharmacist and delivered to your address.

Directions for Use

Wash your hands before and after applying. Apply a thin layer of Zovirax 5% Cream to the affected area as soon as the first symptoms appear, and reapply approximately every 4 hours, around 5 times a day, for 5 to 10 days, continuing until the lesion has healed. Use a clean fingertip or cotton bud to avoid spreading the virus to other parts of the body or to other people, and do not share your tube of Zovirax with anyone else.

Dosage

For adults and adolescents, apply Zovirax 5% Cream 5 times a day at roughly 4-hour intervals for 5 to 10 days, starting treatment as early as possible — ideally at the very first tingling or itching sensation, since treatment started after the blister has fully formed is less effective. If the cold sore has not healed after 10 days of consistent use, stop and consult a doctor or pharmacist.

Storage Instructions

Store below 30°C in a cool, dry place away from direct sunlight. Keep the tube tightly closed after each use. Do not freeze. Keep out of the reach and sight of children.

Side Effects

Nausea or vomiting
Headache
Dizziness
Diarrhoea
Joint or muscle pain
Fatigue or tiredness
Mild rash or skin reaction

Contraindications

Known hypersensitivity or allergy to aciclovir, valaciclovir, propylene glycol, or any other ingredient in Zovirax Cream
Not for use inside the mouth, in the eyes, or on genital herpes sores without a doctor’s advice, as alternative formulations or oral treatment may be more appropriate
Not intended for use on broken or actively weeping skin outside the typical cold sore area without medical advice
Pregnant or breastfeeding women should consult a doctor or pharmacist before use
Consult a doctor if cold sores are unusually frequent, severe, or occur in someone with a weakened immune system

Drug / Food Interactions

Topical aciclovir in Zovirax Cream has very low systemic absorption, so significant drug interactions are unlikely with normal use
Avoid applying other lip balms, cosmetics, or creams directly onto an active cold sore at the same time as Zovirax, as this may reduce its effectiveness
No significant food interactions are expected with topical use
Let your pharmacist know if you are taking oral antiviral medicines for herpes, in case of any specific guidance

Quick Tips

Apply Zovirax at the very first tingling, itching, or burning sensation for the best results
Use a clean fingertip or cotton bud rather than repeatedly touching the sore with bare fingers
Avoid picking, squeezing, or scratching the cold sore, and avoid kissing or sharing drinks/utensils while it is active
Wash your hands thoroughly after each application
Use lip sunscreen or balm with SPF if sunlight tends to trigger your cold sores
See a doctor if the sore does not improve within 10 days, recurs frequently, or spreads beyond the usual area

Ingredients / Active Ingredients

Acyclovir

Aciclovir 5% w/w (active ingredient)
Cream base formulated for topical application to skin around the lips
Emulsifying and thickening agents that give the cream its texture
Preservative system to maintain product stability
Purified water as the vehicle base

Safety Advice

Pregnancy

Safe If Prescribed

This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.

Breastfeeding

Use With Care

Use with caution. Monitor infant for potential adverse reactions.

Kidney

Use With Care

Use cautiously. Dose adjustment or monitoring may be required.

Liver

Use With Care

Use cautiously. Liver function monitoring may be required.

Alcohol

Generally Safe

Consuming alcohol with this medicine is generally safe, but moderate intake is advised.

Driving

Use With Care

Use caution while driving until you know how this medicine affects you.

Relevant Information

Cold sores are caused by the herpes simplex virus, which remains dormant in nerve tissue after the initial infection and can reactivate due to triggers such as stress, illness, fatigue, hormonal changes, or sun exposure. Zovirax 5% Cream treats an active outbreak but does not cure or remove the underlying virus, so cold sores can recur over time. Anyone who experiences very frequent or unusually severe outbreaks, or who has a weakened immune system, should discuss further management with a doctor.

Frequently Asked Questions

Product Specifications

Brand	GSK
Classification	Non-prescription
Ingredients / Active Ingredients	Acyclovir
Weight	10g
Shelf Life	Zovirax 5% Cream is valid for use up to the expiry date printed on the tube and outer packaging when stored correctly and unopened. Always check the expiry date before use and do not use the cream if it has expired.