What Are Fever Blisters?

  • 1

1 Answer

These messages are for mutual support and information sharing only. Always consult your doctor before trying anything you read here.
Fever blisters, sometimes called cold sores, are groups of small blisters on the lip and around the mouth. The skin around the blisters is often red, swollen, and sore. The blisters may break open, leak a clear fluid, and then scab over after a few days. They usually heal after several days to 2 weeks. Keyword: fever blister; fever blisters
Why do u get fever blister?
Cold sores are caused by certain strains of the herpes simplex virus (HSV). HSV-1 usually causes cold sores. HSV-2 is usually responsible for genital herpes. However, either type can cause sores in the facial area or on the genitals. Most people who are infected with the virus that causes cold sores never develop signs and symptoms.

Cold sores are most contagious when oozing blisters are present. But you can transmit the virus to others even if you don't have blisters. Shared eating utensils, razors and towels, as well as kissing, may spread HSV-1. Oral sex can spread HSV-1 to the genitals and HSV-2 to the lips.

Once you've had an episode of herpes infection, the virus lies dormant in nerve cells in your skin and may emerge as another cold sore at the same place as before. Recurrence may be triggered by:

    Viral infection or fever
    Hormonal changes, such as those related to menstruation
    Stress
    Fatigue
    Exposure to sunlight and wind
    Changes in the immune system
you get fever blisters when your immune system is weak
...