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DR. AYSHA BUTT

MEDICAL DIRECTOR

Dr. Aysha Butt is the Medical Director of FROM MARS, and is a GP Partner at Woodcote NHS Medical Practice.

GMC NUMBER: 6149065

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Are cold sores herpes? What you need to know

There’s lots of misinformation and confusion about cold sores and herpes. People have questions that often aren’t answered clearly, like are cold sores and herpes the same thing, can cold sores on your face cause genital herpes, and do you have a sexually transmitted infection if you have cold sores?

Maybe you’ve got a cold sore, and you have some of these questions? That’s what we’re here for. We’ll let you know everything you need to know about cold sores, herpes, and sex. And we’re going to make it clear and super-simple.

What are cold sores?

Cold sores are small blisters that appear on your face, usually around or on your lips, but they can form elsewhere too, like on your cheeks or chin. They usually contain a clear liquid, and they usually burst and crust over. They typically last for around two weeks.

Are cold sores herpes?

Yes. Cold sores are caused by a herpes infection. This might sound scary, but herpes is a condition that can be effectively managed.

What is herpes?

Herpes is the name of a group of viruses, called herpes simplex viruses (HSV) that usually infect the skin. Cold sores are most often caused by an infection of the herpes simplex 1 strain of the virus (HSV-1).

How does herpes cause cold sores?

The herpes virus spreads between people by skin-to-skin contact, such as by being kissed by someone who has the cold sore blisters present on their face. The virus gets into the body through an opening, such as a cut or through your mouth. Once inside, it multiplies and spreads through the surrounding skin cells, causing the blisters to form on you.

Once you’ve been infected, the virus takes up residence in the nerve cells in your skin. Most of the time you won’t have any symptoms but now and again the virus spreads out of the nerve cells and through the skin causing another outbreak or flare up.

What does a herpes sore look like?

The sores can look different by person, but they typically look like this:

What is genital herpes?

Genital herpes is an infection of the herpes virus in the skin on and around the genitals, anus, or buttocks. Whereas cold sores are usually caused by the HSV-1 virus, genital herpes is usually caused by the HSV-2 version of the virus.

Can cold sores cause genital herpes?

Yes, they can. Genital herpes can also be caused by an infection of the HSV-1 virus on and around the genitals. It can be passed from face to genitals through oral sex, but also by touching the face and then touching the genitals. You can even pass a herpes infection from your face to your own genitals. This means you should avoid sex and oral sex if you or your partner have an outbreak of cold sores, and you should both wash your hands often with an antibacterial wash.

Do cold sores mean you have an STD?

Cold sores are not considered a sexually transmitted disease (STD), but genital herpes is as it’s most often caught through having sex with someone with genital herpes.

How common are herpes infections?

Herpes viruses are highly contagious; they spread easily from person to person, meaning they’re more common than you might think. It’s estimated that 67% of the world’s population is infected with the HSV-1 virus, and nearly 10% are infected with HSV-2.

Why don’t some people get symptoms of herpes?

Some people can be infected with a herpes virus but show no symptoms. Scientists don’t yet understand why these people never get blisters or sores, but they can still be contagious and pass the virus to others.

How do I protect myself against cold sores and genital herpes?

Herpes viruses are common and contagious, so they are very easy to catch, but you can try the following to help protect yourself:

Can I take medications for cold sores and genital herpes?

If you catch a herpes virus, unfortunately, it’s with you for life. The virus takes up residence in your body, and there’s no cure that can remove it for good. You can take medications to help manage the condition though. Valacyclovir and Valtrex are antiviral drugs which can help limit the severity of outbreaks, clear them up quicker, and reduce the pain. They can even be taken to lessen the chances of an outbreak happening.

You can order valacyclovir or Valtrex directly from us at FROM MARS. Start an online consultation by entering your medical history and symptoms. If approved, you’ll receive a treatment plan from our doctors within two hours, and your meds will be shipped for free to your door within two days.

Although there’s a lot of myth and misinformation around cold sores, herpes, and genital herpes, there shouldn’t be. It can be easy to understand what they are and what causes them if explained simply. We hope this guide helps.