Q: In my younger years, I suffered from recurring cold sores when exposed to the sun or when under stress. What worked for me back then was a product called Enisyl (lysine spelled backward). It worked ...

Question: In your recent article about cold sores, it was very noticeable you did not address the use of lysine, which I hear is pooh-poohed by medical professionals. I use it at the earliest onset of ...

Q: In your recent article about cold sores you did not address the use of lysine, which I hear is pooh-poohed by medical professionals. I use it at the earliest onset of a cold sore, and it works ...

Long before prescription medications became available to control herpes simplex outbreaks, which cause cold sores, lysine was considered a useful weapon to combat herpes infections. Many people still ...

First, you’re not alone. Up to 80% of American adults have the herpes simplex virus (HSV-1), which can cause cold sores (also known as fever blisters), according to Johns Hopkins. The viral infection ...

DEAR DR. ROACH: What do you recommend to reduce healing time for cold sores on the lip? These flare-ups are so frustrating because they can take so long to heal. Is anything available that is better ...

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Lysine's precise role in the prevention and treatment of herpes labialis outbreaks is unknown. Of seven randomized, double-blind, placebo-controlled studies reviewed, six showed lysine to be effective ...

Dear R.L.: For cold sores caused by recurrence of the oral herpes simplex virus, early treatment with antiviral medicine can speed up healing. Most of my patients prefer the more potent valacyclovir ...