11 doctors weighed in:
What are cold sores?
11 doctors weighed in

Dr. Randolph Todd
Dentistry - Endodontics
6 doctors agree
In brief: A lip ulceration
"cold sores" are a laymen's term for herpes labialis.
This is a viral infection caused by the herpes simplex virus type 1. An alternative name for the condition is a "fever blister". It is often painful, but not always, may become crusty and is contagious. The condition usually resolves within two weeks but may reside as a life-long virus. Prompt topical and oral treatment may prevent eruption.

In brief: A lip ulceration
"cold sores" are a laymen's term for herpes labialis.
This is a viral infection caused by the herpes simplex virus type 1. An alternative name for the condition is a "fever blister". It is often painful, but not always, may become crusty and is contagious. The condition usually resolves within two weeks but may reside as a life-long virus. Prompt topical and oral treatment may prevent eruption.
Dr. Randolph Todd
Dr. Randolph Todd
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Dr. Ankush Bansal
Internal Medicine
3 doctors agree
In brief: Herpes
Cold sores around the mouth are usually herpes simplex type 1.
They can also occasionally be type 2. The sores or ulcers are reactions to the virus replicating in a nerve cell and manifesting on the skin. The fluid inside the sore is full of new virus. See your doctor so you can be prescribed a medication to control the virus.

In brief: Herpes
Cold sores around the mouth are usually herpes simplex type 1.
They can also occasionally be type 2. The sores or ulcers are reactions to the virus replicating in a nerve cell and manifesting on the skin. The fluid inside the sore is full of new virus. See your doctor so you can be prescribed a medication to control the virus.
Dr. Ankush Bansal
Dr. Ankush Bansal
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Dr. Kim Capehart
Dentistry
In brief: Cold Sores
Cold sores are usually caused by hsv (type i or ii) but cold sores are usually cause by type i.
Cold sores are contagious and recurrence can be cause by uv light, stress, hormone fluctuation, to fever and sometimes, there is no apparent cause. Go to your doctor for appropriate treatment options such as anti-viral medications.

In brief: Cold Sores
Cold sores are usually caused by hsv (type i or ii) but cold sores are usually cause by type i.
Cold sores are contagious and recurrence can be cause by uv light, stress, hormone fluctuation, to fever and sometimes, there is no apparent cause. Go to your doctor for appropriate treatment options such as anti-viral medications.
Dr. Kim Capehart
Dr. Kim Capehart
Thank
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