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Doctor insights on: How Long Does Fever Associated With Cold Sores Last

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Dr. Heidi Fowler
1,014 doctors shared insights

Cold Sore (Definition)

Also referred to as fever blisters, cold sores are small, painful fluid-filled blisters that are usually found around the lips. Cold sores are generally caused by the herpes simplex virus 1 which is related to herpes simplex virus 2 that causes genital herpes. Cold sores are very contagious and can be spread by mouth to mouth contact. They can spread to the genitalia and cause genital ...Read more


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Are cold sores and fever blisters the same thing?

Are cold sores and fever blisters the same thing?

Yes: Cold sores and fever blisters are terms people use to describe a viral infection which usually affects the lips. The most common cause is by the hsv1 virus. They can be treated with anti-viral medications. An episode typically lasts about 10-15 days. ...Read more

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I would like help with my fever blisters (cold sores)?

I would like help with my fever blisters (cold sores)?

Zovirax (acyclovir): cold sores are caused by herpes virus.they can be treated with oral anti-viral medications available by prescription from your doctor ...Read more

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Are there any good ways to prevent cold sores and fever blisters?

Are there any good ways to prevent cold sores and fever blisters?

Prevention: To prevent cold sores from occurring wash hands often. Maintain a healthful lifestyle (regular exercise, nutritious diet, adequate sleep, keeping stress at bay). Keep lips well moisturized & apply sun screen to the areas that your cold sores normally pop up. Talk with your physician about supplementing with lysine. ...Read more

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What is the fastest/best way to get rid of cold sores/ fever blister?

What is the fastest/best way to get rid of cold sores/ fever blister?

Some options: Melissa officinalis or lemon balm (cream) expedites healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation with lysine 1, 000mg orally three times a day at the onset, can also hasten healing. Your physician can prescribe oral valtrex (valacyclovir). ...Read more

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What causes cold sores and fever blisters in the mouth and lips?

What causes cold sores and fever blisters in the mouth and lips?

Virus: Cold sores are caused by the herpes virus and is a very common infection to get. It is estimated that 90+% of population has been exposed to this virus in childhood. Usually it is triggered by stress, lack of sleep, excess sunlight etc.. Sometimes people get them recurrently or once in awhile or sometimes once then never again. It depends but can be treated by Acyclovir and related drugs too. ...Read more

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I have a few cold sores in my mouth, I've always gotten them whenever I've had fevers, etc. But one of them has a black dot on it. Should I be concern?

I have a few cold sores in my mouth, I've always gotten them whenever I've had fevers, etc. But one of them has a black dot on it. Should I be concern?

Need to see: Most cold sores can bleed and cause blood but this is one that we need to see. Take a pic upload it here and we can have a better idea. Otherwise see your doctor when you have a moment. ...Read more

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What causes fever blisters/ cold sores on my upper lip?!?

What causes fever blisters/ cold sores on my upper lip?!?

Cold sores: Cold sores/fever blisters are cause by the herpes simplex virus. There are 2 types—oral & genital. Either type can cause a "cold sore" although the oral type is usually involved with lip lesions. There are several otc treatments to lessen symptoms, but prescription anti-viral meds work better to clear the lesions. Herpes, however, is not cured; it is suppressed & can reappear.—>. ...Read more

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Dr. Mark Diamond
2,227 doctors shared insights

Fever (Definition)

Fever is the temporary increase in the body's temperature in response to some disease or illness. A child has a fever when the temperature is at or above one of ...Read more