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Variety of delivery options including next day & free delivery.
Pharmacy, clinic and prescribers based in Greater Manchester.
Start your treatment with a quick and free online consultation.
Fill in a quick online consultation for our licensed pharmacists to review.
Our pharmacists will review your treatment to ensure it’s suitable.
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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 |
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.
Cymex Cream is suitable for adults and children aged 5 years and over.
Do not use Cymex Cream if you:
Speak to a healthcare professional before use if you:
Avoid touching the cold sore unnecessarily to prevent spreading the infection.
Side effects are rare but may include:
Stop using the cream and seek medical advice if an allergic reaction occurs.
Page content authored by Amjad Khan, last reviewed by Mr Muhammad on 21st April 2026.
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