Acyclovir Cream

What Should I Tell My Healthcare Provider?

You should talk with your healthcare provider prior to using acyclovir cream if you:
Make sure to tell your healthcare provider about all of the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Precautions and Warnings With Acyclovir Cream to learn more, including information on who should not take the drug.)

How Does It Work?

Cold sores are caused by viruses -- specifically, the herpes simplex viruses (HSV). Acyclovir cream is an antiviral medication that helps the body fight the infection by preventing the virus from multiplying.
It is important to understand that once a person has been infected with these viruses, they never go away. Instead, they remain inactive in certain nerve cells of the body, waiting to become active again. In addition, treatment with acyclovir cream does not prevent future outbreaks of cold sores.

Effects of Acyclovir Cream

A few studies have looked at acyclovir cream for the treatment of cold sores in people who have frequent outbreaks. These studies showed that people who used the medication at the first signs of an outbreak had cold sores that healed about half a day sooner, compared to people who did not use it.

Acyclovir (Zovirax) Cream

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