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    Treat Coughs, Colds & Flu

    Zovirax Cold Sore Cream

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    Expected delivery date Thursday, 22 April 2021 If you order within: 22h21m41s
    • Fast & Discreet Delivery

      Plain packaging with no medical stamps or marks

    • Quick & Easy

      No appointment or long waiting times

    • Completely Confidential

      Your information stays with us and private payment

    • UK Medication

      Dispensed by registered UK pharmacists

    What is Zovirax Cold Sore Cream

    The active ingredient in Zovirax Cold Sore Cream is acyclovir, a sort of medicine that is called an antiviral. Antivirals corresponding to acyclovir are used for the remedy of infections caused by the herpes simplex virus.

    How effective is Zovirax Cold Sore Cream?

    Zovirax Cold Sore Cream is a useful product for treating cold sore symptoms caused by the herpes simplex virus. A study featured in the MDedge Family Medicine online journal indicated that acyclovir treatment administered during the onset of the symptoms reduces the pain and the healing time of the outbreak. Combined with another medicine, valacyclovir, the duration of the lesion is reduced, the healing time is hastened and the development of the lesion is prevented. The study further noted that acyclovir has significantly decreased the pain of all the patients involved in the research. 

    Can I buy Zovirax Cold Sore Cream online?

    Zovirax Cold Sore Cream can be purchased online and in local pharmacies. You can feel at ease to book an appointment with a health expert at Click Pharmacy to discuss how to best use this product. This medication is available in 2g aluminium tubes and 2g pump assembly packages. If you buy online, the medicine will be sent directly and discreetly to you by Next Day Delivery.

    What dose should I choose?  

    Zovirax Cold Sore Cream is sold in 2g aluminium tubes and 2g pump assembly packages. This product is administered according to your doctor’s or pharmacist’s directions. Typically, the cream is applied over the cold sores (including its outer edges) 5 times a day after every 4 hours. You can skip applying this medication in the middle of the night. This medicine is indicated for use by children and adults.

    How should I use Zovirax Cold Sore Cream?

    Adhere to your doctor or pharmacist’s directions about the proper use of this product. If you need more information pertaining to it, talk to your healthcare provider.

    This medication is intended for external use only.

    Squeeze a small amount on the cream on your fingertip. Apply a thin layer of it over the affected area, covering the outer edges of the cold sores as well. Do this procedure 5 times a day, with 4 hours intervals in between. You do not need to apply this medication in the middle of the night.

    You can apply this product at the onset of the cold sore symptoms, particularly when you begin to feel an itching, burning or tingling sensation on your face or lips. You can also start your treatment when the blisters have started appearing.

    Do not exceed using this product for four days. If, after this time duration your symptoms do not improve but on the other hand persists and worsens, you should consult your doctor.

    If you missed applying a dose, follow up with another one as soon as you remember. If the schedule of your next dose is nearing, just skip applying that which you missed. Then proceed with your usual regimen for your treatment.

    An overdosage of this medication is unlikely as a topical application; however, if someone has swallowed the cream, call your doctor and seek medical attention immediately.

    Wash your hands clean and dry before and after using the cream. Do not rub your cold sores with your hand or a towel to avoid aggravating your infection.

    How does Zovirax Cold Sore Cream work?

    Acyclovir, the active ingredient in Zovirax Cold Sore Cream, is a medicine that belongs to the category of antivirals. It works by eliminating viruses that cause various infections. Other than treating cold sores or fever blisters (also known as herpes labialis), it also hastens the healing time of the condition. This product reduces its associated symptoms, such as pain, itching, tingling and burning. The earlier this medication is applied, the more effective it is in speedily treating cold sores.

    How long do I use Zovirax Cold Sore Cream for before I notice a difference?

    This medicine is known to be an antiviral, and it kills the virus that causes herpes labialis (cold sores/fever blisters). Being a topical cream, this product is applied over the affected areas 5 times a day, with 4 hours intervals in between. This medication is not applied in the middle of the night. The approximate treatment duration for using this product is 4 days. If, after this period, your symptoms do not improve, consult your doctor.

    What are the side effects of Zovirax Cold Sore Cream?

    Medicines may have side effects that are experienced by different individuals in different ways. Zovirax Cold Sore Cream may have side effects, too, but not all users experience them.

    Call your doctor right away if you do not feel well while using this product.

    As much as this medicine helps in treating herpes labialis, it may also bring serious side effects, although unlikely. Consult your doctor and seek medical attention immediately if you experience untoward symptoms while medicating on this product.

    If you experience allergic symptoms while using this medicine, call your doctor and seek medical attention right away. Symptoms of medicine allergy include:

    Swelling of the lips, face, throat or mouth

    Severe itching, skin rash or hives

    Difficulties in breathing or swallowing

    Low blood pressure signified by dizziness or fainting


    The above-mentioned side effects may be serious and requires hospitalization or urgent medical attention, however, they rarely occur, especially if medicating with low doses of the cream, and using it for a shorter period of time.

    Please speak to your doctor or consult our specialists at Click Pharmacy should you require any further advice.

    When shouldn’t I use Zovirax Cold Sore Cream?

    Do not begin this treatment if you are allergic to any of the ingredients contained in the product. Do not use this cream with other topical applications when treating your cold sores. Use this medicine as directed, and not for more often or for a longer duration than that. This product is formulated to treat cold sores. Do not use it for the treatment of other kinds of infections.

    What is the difference between Zovirax Cold Sore Cream and Compeed Cold Sore Patch/Herpotherm?

    Compeed Cold Sore Patch is a product for treating cold sores by way of applying an invisible healing patch. It uses a hydrocolloid 075 technology in the form of an active gel that works as a second skin.

    Secondly, Herpotherm as a lip sores treatment and the preventive product is a pocket-sized electronic device that heats up to about 51°C before placing on the affected area.

    Patient Information Leaflet

    Always read the patient information leaflet before starting your treatment. The patient information can be found here.

    Authored by

    Jana Abelovska

    Last reviewed

    09 October 2020

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