When is it too late to apply zovirax (acyclovir) to cold sore?

Never. It still helps to apply the cream after 4 or 5 days just a lot less. Better to use it at first sign of a cold sore. It may not help much but can't hurt. Oral medications work well if you start at 1st sign.

Related Questions

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

Yes. Just wash hands after applying it to be extra safe, but this drug is known to be safe when breastfeeding even if taken internally. We use it in babies all the time. . Read more...
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...

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...

I have a cold sore. Other than using zovirax (acyclovir) what else can I put on it to make it go away fast?

Eat Yogurt. Herpes simplex virus is when you get little cold sores on the outside of your mouth or the tip of your nose. Try not to touch the cold sore, you could spred it to other parts of your face or eyes. Steep a tea bag then cool it- apply to cold sore to releive pain. Lysine, 3, 000 milligrams daily until the sore goes away. Or eat yogurt which is rich in lysine. You can buy lip clear which has lysine. Read more...

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...

Is it possible to use zovirax (acyclovir) ointment for a cold sore on my lip?

Oral. I believe that oral antivirals are recommended (vice topical). Melissa officinalis or lemon balm (cream) expedites healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation with lysine 1, 000mg orally three times a day at the onset, can also hasten healing. Your physician can prescribe oral valtrex (valacyclovir). Read more...