Herpes

A common viral infection that causes blisters and sores on the lips. Most people get this once or twice in their lifetime. It typically comes back in the same place every time. Mouth ulcers are also called cold sores.
Published:
27/8/2024

What is

Mouth ulcers often first start with a little tingling or pain in the skin, and then a couple of small fluid-filled blisters (1-3 mm in size) appear.

These burst and there are sores and cracks, sometimes with crusts.

Duration is 7-10 days.

Fever and feeling sick can occur at the same time.

A white spot may remain on the skin after the infection is over.

What is due

The cause is the herpes simplex virus (HSV), which many people are infected with as children or young people.

The virus lies "dormant" in the body, and is activated from time to time.

Some people can get mouth ulcers many times a year, but fortunately, after months or years, outbreaks will almost always become less frequent.

Mouth ulcers can be triggered by infections (hence the name cold sores), sunlight, stress, cold, menstruation and pregnancy .

How to treat

For many, palliative treatment with a lip balm is sufficient.

You can buy non-prescription creams at the pharmacy, but unfortunately the effect is not always that good.

For those who have frequent mouth ulcers, a doctor can write a prescription for tablets (valaciclovir), and these must be used as soon as the outbreak starts.

Tablets are considered more effective than cream.

Mouth ulcers can be prevented by sun protection.

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Our dermatologists help people of all ages, from newborns to the elderly, with everything from simple skin changes to serious conditions.

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Michael Zangani
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Bjørnar Halsør Moen
Thomas Schopf
Linnea Randisdatter Torsnes
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Carl Fredrik von Krogh
Mohammad Rizvi
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Vladimir Jankovic
Maria Ulvestad
Kenan Tanovic
Nina Øien
Premnaath Torayraju
Nerea Bratteland
Henrik Aasrum Svendsen

Our dermatologists help people of all ages, from newborns to the elderly, with everything from simple skin changes to serious conditions.

Jon Anders Halvorsen
Mari Skylstad Kvernebo
Michael Zangani
Katarina Zak Stangeland
Jürgen Funk
Elin Holthe Johnsen
Bjørnar Halsør Moen
Thomas Schopf
Linnea Randisdatter Torsnes
Nils-Jørgen Mørk
Kim Endre
Carl Fredrik von Krogh
Mohammad Rizvi
Trine Lilly Halvorsen
Xiaotong Li
Roza Garvik
Christian Vestli
Christoffer Aam Ingvaldsen
Vladimir Jankovic
Maria Ulvestad
Kenan Tanovic
Nina Øien
Premnaath Torayraju
Nerea Bratteland
Henrik Aasrum Svendsen
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