What Causes Cold Sores?

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Fever blisters, caused by the Herpes Simplex Virus (HSV-I), are lesions around the mouth that can be treated with topical medication or drugs that suppress outbreaks. HSV-I is highly contagious and can be transmitted in various ways, and there is currently no cure.

Fever blisters are lesions in and around the mouth caused by Herpes Simplex Virus (HSV) infection. They can also be known as cold sores and should not be confused with canker sores, sometimes referred to as canker sores. The causes of these two conditions are different, as are the treatment options.
The form of herpes that causes fever blisters is known as HSV-I, which distinguishes it from HSV-II, the form of herpes that infects the genitals. Although HSV-II can cause oral infections and vice versa, most outbreaks of fever blisters are associated with HSV-I. The exact number of individuals infected is unknown, but HSV-I is believed to be extremely common; up to 50% of people can be infected with it.

An HSV-I infection remains dormant until the victim is subjected to stress, sudden changes in diet, fever, or trauma to the mouth. Then, the infection becomes active and fever blisters appear. Usually, a few days of tenderness and hard spots precede an outbreak. The unsightly lesions may appear on or around the lips and on the gums and palate. Inside the mouth, fever blisters tend to be small and resolve more quickly than canker sores.

A number of topical medications can be used to treat pain associated with fever blisters. These medications can also help reduce injuries and promote speedy healing. Some people with HSV-I prefer to take drugs that suppress outbreaks or take drugs that target the early stages of the outbreak. There is currently no cure for oral herpes, although scientists are working on it, as this highly contagious disease is so common.

If you experience recurring outbreaks of blisters and sores around your mouth, you may need to get tested for HSV-I. Although many people think of this disease as a sexually transmitted infection, you shouldn’t feel ashamed. HSV-I is so contagious that it can be transmitted in a variety of ways; you could share a drink with someone and have it, for example. If the test comes back positive, it’s important to let intimate partners know so they know they may be at risk of infection. A doctor can provide advice on how to reduce and manage outbreaks through diet and lifestyle changes.




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