Cold Sores

Cold sores are most commonly caused by the herpes simplex virus type 1 (HSV-1), although in some cases they can also be triggered by HSV-2.

While HSV-2 is typically linked to genital herpes, it can lead to cold sores through oral transmission, such as during oral sex.

Outbreak frequency varies from person to person. Some people experience cold sores regularly, while others may only have occasional flare-ups. When outbreaks occur, they can be painful and uncomfortable. Antiviral medications, such as Aciclovir or Valaciclovir, are effective at reducing symptoms and helping the sores heal more quickly.

Common cold sore triggers include sun exposure, which can suppress the immune system due to UV radiation, as well as illness, stress, and weakened immunity. Recognising and managing these triggers can help reduce the likelihood of future outbreaks.

At 123Meds, we provide fast, discreet access to clinically approved cold sore treatments through our online consultation service.

Cold sores typically begin with a tingling or burning sensation around the lips or mouth – a common early warning sign of an outbreak.

This is soon followed by the appearance of small, fluid-filled blisters that may feel sore, itchy, or uncomfortable. As the cold sore progresses, the blisters can crack or bleed, making the area particularly painful.

Cold sores usually develop in the following stages:

• A tingling, itching, or burning feeling around the affected area
• Formation of small fluid-filled blisters
• Blisters burst and may leak before crusting over
• A scab forms and gradually heals over the next few days

Starting antiviral treatment early – ideally at the tingling stage – can help reduce the severity and duration of symptoms. Without treatment, cold sores can take up to 10 days to heal. Prescription antivirals such as Aciclovir and Valaciclovir are effective in speeding up recovery and minimising discomfort.

At 123Meds, you can access cold sore treatments quickly and discreetly with an online consultation.

Aciclovir: Aciclovir (also known as Acyclovir) is an antiviral medication taken to effectively treat cold sore outbreaks. Aciclovir works by stopping the HSV virus from multiplying, which significantly shortens the outbreak duration and accompanying symptoms.

Valaciclovir: Valaciclovir (also known as Valacyclovir) is an antiviral medication used in the treatment of cold sores. Valaciclovir is a precursor of Aciclovir, which means it changes into Aciclovir in the body. This means it stays in the body for longer and does not need to be taken as often as Aciclovir.

What should you do and not do if you have a Cold Sore outbreak?

When experiencing an outbreak of cold sores it’s important to manage it effectively, this is necessary to ease discomfort, speed up the healing process and reduce the risk of passing the virus on.

The Do’s and Don'ts of having cold sores:

• Do: Drink plenty of fluids to avoid dehydration.
• Do: Wash your hands before and after applying the cream.
• Do: Use lip balm with SPF 15 or above.
• Do: Eat cool, soft foods.
• Do: Take painkillers to ease pain and swelling.
• Do not: touch your cold sore.
• Do not: kiss anyone when you have a cold sore.
• Do not: share anything you come into contact with (e.g. cutlery, lipstick).
• Do not: eat salty, acidic food.
• Do not: have oral sex until your cold sore has completely healed.