Medically reviewed by Katlein Franca, MD In some ways, the features of a cold sore vs. a pimple on the lip line are very ...

Cold sores, or fever blisters, are precisely herpes simplex virus type 1 (HSV-1) that appear as fluid-filled blisters around the lips that can also develop on the chin, cheeks or inside the nostrils.

Researchers from the University of Colorado Anschutz Medical Campus have discovered how the common cold sore virus, HSV-1, enters the brain and identified specific brain regions vulnerable to ...

QUESTION: I used Zovirax ointment for two decades while I had employer-funded insurance. Once I went on Medicare, I learned ...

A 5-gram tube of Zovirax cream runs more than $200. A month’s supply of valacyclovir (500 milligrams) tablets costs between ...

Now that cold and flu season is upon us, our wellness editors are using these hacks to avoid sickness and stay healthy.

If you feel a cold coming on, the best way to support your immune system and symptoms is to hydrate and rest. Learn what ...

One in five of us suffer with cold sores, or 'coleslaws' as spluttering children call them. They are created by herpes simplex, a virus that sits quietly in nerves around the mouth, only gracing ...

Cold sores are caused by the herpes simplex virus (HSV) which is often transmitted from person to person during kissing. Once it has infected the body, the virus lies dormant, generally being kept ...