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2. Cold sore - Wikipedia

   en.wikipedia.org/wiki/Cold_sore

   When reactivation occurs, the virus travels down the nerves to the skin where it may cause blisters (cold sores) around the lips or mouth area. [25] In case of Herpes zoster the nose can be affected. [26] Cold sore outbreaks may be influenced by stress, menstruation, sunlight, [27] sunburn, fever, dehydration, or local skin trauma. [28]

3. Angular cheilitis - Wikipedia

   en.wikipedia.org/wiki/Angular_cheilitis

   The mouth may act as a reservoir of Candida that reinfects the sores at the corners of the mouth and prevents the sores from healing. [citation needed] A lesion caused by recurrence of a latent herpes simplex infection can occur in the corner of the mouth. This is herpes labialis (a cold sore), and is sometimes termed "angular herpes simplex". [2]

4. Have a Cold Sore? What to Know About Symptoms, Treatments ...

   www.aol.com/cold-sore-know-symptoms-treatments...

   What are cold sores? Cold sores, also known as fever blisters, can appear on your mouth or lip and are usually caused by oral herpes or herpes simplex virus type 1 (HSV-1). “It’s extremely ...

5. How to get rid of canker sores — and make them less painful

   www.aol.com/lifestyle/rid-canker-sores-them-less...

   Canker sores are not contagious and appear inside the mouth. Cold sores, on the other hand, are contagious — they’re caused by the herpes simplex virus — and tend to crop up outside the ...

6. Mouth ulcer - Wikipedia

   en.wikipedia.org/wiki/Mouth_ulcer

   Diagramatic representation of mucosal erosion (left), excoriation (center), and ulceration (right) Simplistic representation of the life cycle of mouth ulcers. An ulcer (/ ˈ ʌ l s ər /; from Latin ulcus, "ulcer, sore") [2] is a break in the skin or mucous membrane with loss of surface tissue and the disintegration and necrosis of epithelial tissue. [3]

7. What Is the Difference Between a Fever Blister and a Cold Sore?

   www.aol.com/lifestyle/difference-between-fever...

   Cold sores versus canker sores To make a true diagnosis of the cold sore virus, your doctor needs to take a culture from the area and send it to the lab for analysis, says Dr. Friedman.