Is a cold sore contagious?

You want to get rid of your cold sore because it’s bothersome and unsightly. But did you know that a cold sore is contagious? Follow our advice to promote healing and avoid infecting your loved ones.

Is a cold sore contagious?

Is the cold sore contagious?

A cold sore, also known as a herpes sore, appears as a ‘cluster’ of blisters. Redness is often seen in the affected area, along with a sensation of heat, tingling or itching. A cold sore contains a clear fluid that is highly concentrated in HSV-1 virus, making it extremely contagious. It is therefore transmitted by physical contact. (1)

 Cold sore: how long does it last?

Herpes sores follow their own course, going through various stages until they heal. A few hours to a few days before the sore appears, you may notice a sensation of warmth in the affected area. The sore then appears, forms a scab and eventually falls off after a few days. Thus, healing takes approximately ten days.

A cold sore is considered contagious from the very first signs right up until the scabs appear, signalling that it is healing.(1) The recovery period is not pleasant, as a cold sore is rather unsightly, but bear with it to ensure you make a full recovery.

 Treat your cold sores and prevent recurrence

To treat a contagious cold sore effectively, you need to use a suitable product that treats and protects the lesion.

This is the case with URGO Filmogel® Cold Sore (ages 6 and over), which creates a discreet protective film that helps soothe itching, promotes healing and prevents contamination of the surroundings. Apply enough of the product to cover the spot using the disposable applicator on clean skin, and leave it to dry for a few minutes. You can repeat the operation if necessary, up to 4 times a day.

In addition, here are a few tips to help you treat your cold sore:
• Protect your skin from the sun, which can trigger a herpes outbreak,
• Avoid scratching the scab, as this could delay healing,
• Do not use alcohol to disinfect the sore, as this will only irritate it,
• Do not apply heavy-coverage make-up, such as foundation, directly onto the spot,
• Do not use antibiotic-based creams, as they are ineffective against viruses(2),
• Support your immune system with a varied and balanced diet,
• Make sure you get enough rest, as fatigue and stress are also triggers.(1)

Arm yourself with a little patience and, with the right treatment and a healthy lifestyle, you’ll be able to say goodbye to this unwelcome guest in just a few days. If you suffer from recurring cold sores, find out what triggers them so you can avoid them more effectively.

The URGO product you need: URGO Filmogel® Cold sore

URGO Filmogel® Lippenherpes

URGO Cold Sore Filmogel

Skin prone to cold sores

How to prevent the spread of cold sores

Because it is caused by a virus (HSV-1), a cold sore is highly contagious from one person to another. That is why it is important that you avoid infecting those around you. To do this, avoid physical contact with your loved ones, such as kissing and hugging, especially with young children and people with weakened immune systems.

You should also limit your participation in combat sports such as karate, or team sports that may involve physical contact, such as football or rugby.

Make sure you maintain impeccable hygiene throughout your recovery: wash your hands after touching your cold sore and do not share your towels or lip balm with other people. Also be aware that you can infect yourself by touching your eyes or your contact lenses after touching the sore. (3)

 Preventing cold sores: how can you do it?

It is quite possible to prevent the development of a cold sore with a few lifestyle measures. You should therefore take care to avoid factors that ‘reactivate’ the virus, such as stress, fatigue, trauma or surgical procedures.

You should also be aware that herpes sores often appear during menstruation, during an infection, or when your immune system is weakened. (1) Also remember to protect your skin from the cold and the sun with a moisturising lip balm.

 Should I see a doctor if I have a cold sore?

There is no need to see a doctor for a cold sore, even though it is contagious. However, if it does not clear up after 10 days, if you have more than six flare-ups a year, or if you have a high fever, we advise you to contact your doctor. The advice is the same if you are suffering from severe pain, particularly in the eyes, and if you have a weakened immune system.