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Cymex Cream For Cold Sores

  • Fast-acting cream for cold sore pain relief
  • Soothes itching and discomfort while protecting broken skin
  • Contains a local anaesthetic and antibacterial ingredient
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£2.89
24 hr tracked delivery once approved
Fast & Free Delivery Options

Variety of delivery options including next day & free delivery.

100% UK-based Pharmacy

Pharmacy, clinic and prescribers based in Greater Manchester.

Free Online Consultations

Start your treatment with a quick and free online consultation.

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Step 1: Online Consultation

Fill in a quick online consultation for our licensed pharmacists to review.

Step 2: Choose a Treatment

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About Cymex Cream For Cold Sores

Cymex Cream For Cold Sores is a fast-acting topical treatment designed to relieve the pain, itching, and discomfort caused by cold sores (herpes simplex). It contains a combination of lidocaine hydrochloride, a local anaesthetic that numbs pain, and cetalkonium chloride, an antibacterial agent that helps protect broken skin from infection.

Unlike antiviral treatments, Cymex Cream works by soothing symptoms and preventing secondary bacterial infection while the cold sore heals naturally. It is most effective when applied at the first tingling or itching sensation.

Cymex Cream is suitable for adults and children aged 5 years and over and comes in a convenient 5g tube.

 

Medication Name Cymex Cream For Cold Sores
Active Ingredients Lidocaine hydrochloride and cetalkonium chloride
Other Ingredients Chlorocresol, deionised water, liquid paraffin BP, cetosteryl alcohol BP
Medication Form Topical cream
Used to Treat Cold sores (herpes simplex)
Pack Size 5g tube
Who Can Use It Adults and children aged 5 years and over
Prescription Required? No – GSL

What Is Cymex Cream Used For?

Cymex Cream is used to relieve pain, itching, and irritation caused by cold sores on the lips and face. It also helps prevent bacterial infection in cracked or broken skin while the cold sore heals.

Who Is Cymex Cream Suitable For?

Cymex Cream is suitable for adults and children aged 5 years and over.

Do not use Cymex Cream if you:

  • Are allergic to lidocaine, cetalkonium chloride, or any other ingredients
  • Are applying it inside the mouth or nose

Speak to a healthcare professional before use if you:

  • Have severe or recurring cold sores
  • Are pregnant or breastfeeding
  • Are unsure whether the sore is a cold sore

How to Use Cymex Cream

  1. Wash and dry your hands before application.
  2. Apply a thin layer of cream directly to the cold sore.
  3. Use up to 6 times daily at evenly spaced intervals.
  4. Wash hands again after use.

Avoid touching the cold sore unnecessarily to prevent spreading the infection.

Possible Side Effects of Cymex Cream

Side effects are rare but may include:

  • Mild burning or tingling at the application site
  • Local skin irritation or redness

Stop using the cream and seek medical advice if an allergic reaction occurs.

Warnings and Precautions

  • For external use only.
  • Avoid contact with eyes and inside the mouth.
  • Do not exceed the recommended frequency of application.
  • Stop use if symptoms worsen or persist.

Storage Instructions

  • Store below 25°C.
  • Keep the tube tightly closed.
  • Keep out of sight and reach of children.

Cymex Cream For Cold Sores Reviews

Our Experienced UK-based Pharmacy Team

Clinical Consultant
MUDr, MRCEM, EBCEM, FRCEM
GMC no. 7176414

Pharmacist
MPharm
GPhC no. 2065469

Pharmacist
MPharm
GPhC no. 2046514

Page content authored by Amjad Khan, last reviewed by Mr Muhammad on 21st April 2026.

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