do cold sores always from a blister?
4 doctor answers • 6 doctors weighed in
Dentistry 45 years experience
Most likely: A blister is the body's mechanism to fight and repair the cold sore.
Dentistry 37 years experience
Yes: Cold sores are caused by a virus. (herpes simplex1). Eruptions of this virus are vasicular (blister).
Dermatology 21 years experience
Location of virus: Herpes outbreaks (cold sores) create viral inclusion bodies in the outer layer of skin (the epidermis). The presence of these viral inclusion bodies disrupts the normal architecture of the epidermis, allowing for the formation of blisters.
Dermatology 32 years experience
Herpes: Viruses exhibit rapid rates of mutation which can make immunity difficult to sustain, especially considering chemical drugs for herpes contain only a single antiviral agent. Once a cell is infected it is difficult to selectively inhibit the virus without harming the host cell. As a result, much interest has focused on plants as strong allies in restoring immune strength.
A 33-year-old member asked:
How are blisters and cold sores different?
1 doctor answer • 2 doctors weighed in
Dentistry 43 years experience
Same: If you are referring to "fever blisters" and "cold sores" they are different names for the same thing, caused by virus (herpes).
A 40-year-old member asked:
How can I tell the difference between cold sores and blisters?
1 doctor answer • 1 doctor weighed in
Psychiatry 25 years experience
HSV- 1: Cold sores are caused by the herpes simplex virus (hsv-1).
Last updated Apr 1, 2019
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