LYCOS RETRIEVER 
Cold Sores: People
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Cold sores and fever blisters tend to develop when an individual has a cold or fever but can ... be triggered by sun exposure, emotional distress, intestinal illness and menstruation. These blisters can recur in the same spot or in different locations with a frequency ranging from weekly to yearly--some people infected with the virus never develop blisters. A sore or blister will typically take a few days to break. It will be contagious to others as long as it is visible and occasionally even beyond..
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Lysine Many people have reported that taking the amino acid L-lysine has prevented or lessened the duration of their cold sores. Apparently, the herpes virus uses another amino acid, arginine, to grow and replicate while lysine inhibits the virus' ability to replicate itself. Reduce your intake of arginine-containing foods as mentioned above. If you get sores frequently take 1,500 to 3,000 mg. daily as a preventive measure. When you feel a sore coming on, take 3,000 mg daily until the sore crusts over. Experiment with the dosage until you find one that inhibits recurrence by reducing the amount until you find the optimal maintenance dosage, perhaps to 300-600 mg. Lysine may ... be applied topically to the sores.
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Cold sores (... called oral herpes) are a manifestation of recurrent herpes simplex virus (HSV-1) infection around the mouth. The most common site is on the lips, but some people get cold sores on other parts of the face, such as around the nostrils. HSV-1 is contagious and can be spread by saliva.
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Many people get cold sores, which are ... known as fever blisters. These small and painful blisters usually appear on your lips and are caused by the herpes simplex virus type one. There are ways to reduce their frequency and duration. Try to avoid common triggers such as sunlight, stress, fatigue, and food allergies. There are several simple treatments that may alleviate the irritation of your cold sore, such as over-the-counter pain relievers, or applying ice, or a warm compress to the blister. Most cold sores take 10 days to heal.
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There is evidence that using sunscreen on the lips will prevent cold sores and fever blisters caused by sun exposure. For people with a weakened immune system, antiviral medications may be used to stop cold sores from forming. In certain situations, your dentist or physician may prescribe medicines to prevent outbreaks. If you know that you will encounter a known trigger (for example, dental treatment), a medicine taken in advance can decrease the chance that an outbreak will occur.
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It is estimated that nine out of ten people have been exposed to the cold sore virus. A cold sore outbreak begins with an itchy, tingly sensation around the edges of the lips or nose. After this initial warning sign, a red swollen patch appears which turns into a blister or a group of blisters. Within the next few days the blisters become painful sores. Eventually the sores dry up and heal. It usually takes between 10 and 14 days for the entire cycle of the cold sore to run its course.
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