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Doctor insights on: Using Valtrex For Cold Sores

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Is Valtrex (valacyclovir) or zovirax better for cold sores?

Is Valtrex (valacyclovir) or zovirax better for cold sores?

Either: I'm assuming you're talking about oral Valtrex (valacyclovir) and zovirax (not zovirax cream). Both are effective, but Valtrex (valacyclovir) is more convenient, because it doesn't have to be taken as frequently. My favorite way to treat cold sores is to have the patient take 2 grams of Valtrex (valacyclovir) at the very first sign of an outbreak, and then 2 grams 12 hours later. That two-dose course will shorten the duration of infection. ...Read more

Dr. Heidi Fowler
1,065 doctors shared insights

Cold Sore (Definition)

Also referred to as fever blisters, cold sores are small and painful fluid-filled blisters that are usually found around the lips. Cold sores are very contagious and can be spread by mouth-to-mouth contact and to the genitals, causing genital ...Read more


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How effective is Valtrex (valacyclovir) for cold sores?

How effective is Valtrex (valacyclovir) for cold sores?

effective if early: Anri-virals work best if taken when prodrome like tingling occurs. Or of frequent outbreaks then as daily preventative. ...Read more

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Blistex work for cold sores?

There are medicated: Forms of blistex designed for use with cold sores. ...Read more

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Which is better Valtrex (valacyclovir) and or zovirax for cold sores?

Both work well!: Everyone responds differently to different anti-viral medications! i usually start by prescribing zovirax (acyclovir) and see how a person responds! i often have the patient take 5 capsules a day and also have them apply the ointment to the lesion topically! if that doesn't help, we'll try valtrex! ...Read more

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Is famvir (famciclovir) effective for cold sores?

Is famvir (famciclovir) effective for cold sores?

Yes: If taken at first sign of outbreak at adaquate dosing(1500mgm as single dose) should be sufficient. ...Read more

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Can anbesol cream (for canker sores) work on cold sores?

Can anbesol cream (for canker sores) work on cold sores?

Be Careful: It is important to know that "cold sores" are caused by a virus called the Herpes virus. They are easily spread from one person to another. A canker sore, or Aphtous ulcer, is probably caused by an autoimmune reaction (the body fighting itself) Medicine for one of these is not intended for the other type of mouth sore. The anbesol cream is probably mostly for numbing the sore. ...Read more

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Will using abreva cause a cold sore?

Will using abreva cause a cold sore?

Don't use any one: Else's medications. New abreva should not cause a cold sore but hopefully will help it. ...Read more

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Can abreva work on cold sores?

Can abreva work on cold sores?

Yes,: There is no cure for cold sores. However, some medications may relieve pain and soften HSV crusts on the skin. Abreva is one of them. ...Read more

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How long are cold sores contagious after taking valtrex (valacyclovir)?

How long are cold sores contagious after taking valtrex (valacyclovir)?

As long as sore is : ...Visible. Cold sores are contagious at all stages from the tingling stage to the weeping stage to the scabbing and healing stage. They are most contagious at the weeping stage when fluid comes out. Valtrex (valacyclovir) may shorten the duration of infection, but if the sores are still healing they are contagious. ...Read more

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Suggestions for avoiding a cold sore outbreak?

Suggestions for avoiding a cold sore outbreak?

HSV Suppressive RX: Unfortunately, many patients and many physicians, are unaware of both the risk of asymptomatic transmission of herpes and how effective suppressive treatment can be in preventing it. If you are living with herpes and have one or more uninfected sexual partners, consider discussing the possible advantages of daily suppressive therapy with your doctor. Take prescription Valtrex (valacyclovir) 500-1000mg daily. ...Read more

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Can you use desoximetasone on cold sores?

Cold Sores: You can use steroid cream to lesions because it is anti-inflammatory. ...Read more

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Should I use zovirax (acyclovir) ointment for a cold sore on my lip?

Should I use zovirax (acyclovir) ointment for a cold sore on my lip?

Yes: Zovirax (acyclovir) is commonly used follow your drs instructions and remember it works best when started as early as possible whicheans when you first feel either pain or tingling in the spot before the blisters materialize. ...Read more

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Should acyclovir (zovirax) 400 mg work on cold sore?

Cold sore: Acyclovir is a drug used to treat herpes virus infections. Many cold sores are caused by herpes virus and will respond to such treatment. However, not all cold sores are caused by herpes. In this case, the cold sore may not respond to the treatment. The good news in all this, most cold sores get better within a couple of weeks, even without treatment. Keep it moist with ointment. This helps. ...Read more

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Can I nurse while applying Zovirax (acyclovir) ointment to my lip for treatment of a cold sore?

Can I nurse while applying Zovirax (acyclovir) ointment to my lip for treatment of a cold sore?

NO: Consult your Obstetrician but even a small amount of ZoVirax (acyclovir) will be absorbed into you blood. Your OB-GYN or Pediatrician can tell you if it is excreted in your milk,. In general would avoid any drugs except if absolutely necessary. ...Read more

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Valacyclovir (Definition)

Valacyclovir is a herpes viruses agent which is a kind of anti-viral ...Read more


Dr. Steven Griggs
289 doctors shared insights

Valtrex (Definition)

Valtrex is a herpes viruses agent which is a kind of anti-viral ...Read more