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A 29-year-old member asked:

what is the cause of cold sores?

2 doctor answers4 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Herpes virus, return: Cold sores on the lips or near the lips, are usually caused by recurrent oral herpes virus. They start as a slightly raised reddish area, then form a cluster of tiny blisters, which break open soon, leaving a sore (ulcer) to heal up over a week. Sores appear more often when one is under stress or is ill from another illness. Younger babies with herpes should see a doctor when a sore appears.
Dr. Steve Krendl
Dentistry 17 years experience
Direct Contact: Cold sores are caused by the herpes simplex virus (hsv). They are typically transmitted through broken skin. Sometimes through kissing, sharing eating utensils or drinking cups, or other forms of touching another person's saliva.

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Prattville, AL
A 40-year-old female asked:

What causes cold sores?

12 doctor answers31 doctors weighed in
Dr. David Miller
Dr. David Miller answered
Family Medicine 10 years experience
Herpes virus: Cold sores are typically caused by the type i herpes virus. It is very common and distinct from genital herpes, which is typically caused by the type ii herpes virus, although there is some overlap between the two.
Dr. David Miller
Dr. David Miller commented
Family Medicine 10 years experience
Provided original answer
It's such a common th
Feb 29, 2012
NY
A female asked:

Why causes multiple cold sores at once?

2 doctor answers3 doctors weighed in
Dr. Morris Westfried
Dermatology 46 years experience
Herpes, low immunity: Oral antivirals will help, may need maintenance to control problem.
A 43-year-old member asked:

What could be the causes of repetitive cold sores, ?

2 doctor answers2 doctors weighed in
Dr. Victor Zeines
Dentistry 51 years experience
See below: This virus stays in the body even after the acute outbreak is over. Once the virus enters the body, it never leaves. This virus hides in nerve cells eat a mineral rich diet, add foods that will make your body more alkaline. Stay away from anything that will put stress on the nervous system such as caffeine and alcohol. For more info go to natdent.Com look under info.
A 49-year-old female asked:

What can cause consrant cold sores?

2 doctor answers5 doctors weighed in
Dr. Michael Fisher
Dermatology 32 years experience
Cold Sores: Cold sores are caused by the herpes simplex virus (hsv). There are two types of herpes simplex virus: hsv-1 and hsv-2. Both virus types can cause sores around the mouth (herpes labialis) and on the genitals (genital herpes). Treatment can be with suppressive doses of prescription valtrex, (valacyclovir) 500mg to 1000mg a day.
Netherlands
A 22-year-old male asked about a 22-year-old female:

What types of illness can cause cold sores?

1 doctor answer4 doctors weighed in
Dr. Hunter Handsfield
Infectious Disease 53 years experience
Oral herpes: Recurrent oral herpes (cold sores, also called fever blisters) is reactivation of infection with herpes simplex virus type 1 (HSV1). As the names themselves imply, other infections (colds, influenza, anything that causes fever) can trigger outbreaks. Sunburn also is a common trigger, prevented by sun block cream. However, most outbreaks have no obvious trigger.

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