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Because they have the oral herpes virus which causes oral herpes & cold sores and they did some thing to trigger a break out.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoFever blisters are similar to cold sores. They develop in or outside the mouth, on the lips or even in the nose. They are caused by the herpes simplex virus.
Wiki User
∙ 12y agoSkin-to-skin contact with an infected person, at the location where the virus is active, during a time when they are shedding virus.
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Do you get fever blisters from boys?
You can get fever blisters from boys or girls.
Can working out cause fever blisters?
Working out won't cause fever blisters.
What can you eat when you have fever blisters?
fever muffin
Where can herpes or fever blisters occur in the body?
This disease, also known as oral herpes or fever blisters, can occur anywhere on the body.
Have people only got fever blisters once?
Many people only get the blisters once. Most have it recur, often physically or emotionally stressed.
Do Prednisone pills help fever blisters?
Prednisone pills won't help fever blisters. Actually, prednisone pills would likely make fever blisters worse because prednisone suppresses the immune system, which delays the return to latency for the virus causing the fever blisters.
What is fever blisters?
Fever blisters are cold sores, on or near the lips, caused by the oral herpes virus HSV-Type1.
Is it normal to have fever blisters or cold sores and cankers sores after having wisdom teeth removed?
no your wisdom teeth has nothing to do with cold sores or fever blisters. Cold sores and fever blister are a type are herpes and it is from using other people lip stick.
Are fever blisters herpes?
Yes, they are a form of this viral family, and highly contaigious.This is Herpes Simplex.
What kind of herpeswhich one causes fever blisters?
If you are fighting a virus or if you have a cold you might get a fever blister.
What are fever bumps or blisters?
Fever bumps / blisters are caused by the same contagious virus that causes cold sores which is oral herpes (HSV!).
Can chlorine help fever blisters?
yes
