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Medical Forum / Diseases and Disorders / Herpes / September 2003

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Getting a cold sore!! Anyway to prevent it?

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john63401@yahoo.com - 09 Sep 2003 21:38 GMT
Im getting a dang cold sore on my lip. Last time I had
one of these.... abt a year ago.... it hurt like hell
and took FOREVER to heal up!!

Is there ANYTHING I can do right now to at least lessen
its effects or make it heal faster?  Should I call my
doctor and have him pre-scribe anything?  Or is there
anything over the counter worth a dang?

Like I said it just NOW starting to form.....as of this
morning....and hasn't ulcerated or anything yet.  But I
was planning on going out of town this weekend and
would like to do SOMETHING that will lessen it or kick
it in the behind now.

Advice?
arlyn - 09 Sep 2003 22:47 GMT
Well, there are prescriptions you can use.  And there is Abreva - if you're
in the USA.  And I've been told that Tea Tree Oil is really good for healing
the blisters.

ar

> Im getting a dang cold sore on my lip. Last time I had
> one of these.... abt a year ago.... it hurt like hell
[quoted text clipped - 12 lines]
>
> Advice?
john63401@yahoo.com - 10 Sep 2003 01:40 GMT
>Well, there are prescriptions you can use.  And there is Abreva - if you're
>in the USA.  And I've been told that Tea Tree Oil is really good for healing
>the blisters.

Well.... I called my doctor and told his nurse I was
developing a cold sore.  The doc called a prescription
into the pharmacy and it was Acyclovir...... twenty
five 200 mg capsules.

Ive never taken anything like this before.... is the
Acyclovir a bit over kill for cold sores?

Ive started taking them anyway.... but wanted your alls
opinions.
arlyn - 10 Sep 2003 02:40 GMT
Acyclovir is one of the approved treatments for herpes - therefore, it is
exactly what you need for a cold sore.

ar

> >Well, there are prescriptions you can use.  And there is Abreva - if you're
> >in the USA.  And I've been told that Tea Tree Oil is really good for healing
[quoted text clipped - 10 lines]
> Ive started taking them anyway.... but wanted your alls
> opinions.
john63401@yahoo.com - 10 Sep 2003 03:54 GMT
>Acyclovir is one of the approved treatments for herpes - therefore, it is
>exactly what you need for a cold sore.
>
>ar

OK

Well the Acyclovir scrip only cost me $5...... with my
insurance.... so it was even cheaper than that Abreva

Ive never taken Acyclovir tho..... so was a bit
concerned abt side effects and such
M.L.S. - 10 Sep 2003 04:23 GMT
>>Acyclovir is one of the approved treatments for herpes - therefore, it is
>>exactly what you need for a cold sore.

>Well the Acyclovir scrip only cost me $5...... with my
>insurance.... so it was even cheaper than that Abreva

>Ive never taken Acyclovir tho..... so was a bit
>concerned abt side effects and such

Acyclovir is one of the safest meds there are, as long as you don't
take high doses for an extended period, and that's not likely.

Headaches and nausea are said to occur in a very low percentage of
people.  If either happens just stop and no harm will be done.

Taking the pills after your outbreak has already begun will probably
only shorten the duration of your outbreak a little.  It's best if you
can start it right when you feel the first tingles, or just as the
outbreak starts.  Still, you might be in good shape by the weekend.

Best luck,

Mike
john63401@yahoo.com - 10 Sep 2003 13:53 GMT
>Taking the pills after your outbreak has already begun will probably
>only shorten the duration of your outbreak a little.  It's best if you
>can start it right when you feel the first tingles, or just as the
>outbreak starts.  Still, you might be in good shape by the weekend.

Well it actually started "tingling" this time yesterday
morning...... and then developed into a few small
blisters on my lip. However the blisters haven't
"ulcerated" yet like the last cold sore did I had abt 7
months ago. Man that one was a killer!!!  Hurt like
HELL..... ulcerated and took FOREVER to heal.

Anyway Im hoping by taking the Acyclovir it will kick
the current sore in the butt and at least great reduce
it in severity.

BIG thanks to everyone here for advice!!   I really
didn't know anything abt current herpes drugs till I
posted here yesterday.

I was just in such great discomfort the last time I had
a cold sore (7 months ago) that when I first started
getting the "tingles" yesterday I thought "Ive got to
act now!!"

Anyway... tanks all.
Tim Fitzmaurice - 10 Sep 2003 12:33 GMT
> >Well, there are prescriptions you can use.  And there is Abreva - if you're
> >in the USA.  And I've been told that Tea Tree Oil is really good for healing
[quoted text clipped - 7 lines]
> Ive never taken anything like this before.... is the
> Acyclovir a bit over kill for cold sores?

Cold sores are caused by Herpes SImplex virus...Acyclovir is an antiviral
drug that targets Herpes Simplex Virus. Its pretty much a perfect target.

THe huge numbers of pills is because the drug has a tiny halflife in the
body - not because its a horrendous overkill dose.

Tim
--
When playing rugby, its not the winning that counts, but the taking apart
ICQ: 5178568
john63401@yahoo.com - 10 Sep 2003 13:55 GMT
>Cold sores are caused by Herpes SImplex virus...Acyclovir is an antiviral
>drug that targets Herpes Simplex Virus. Its pretty much a perfect target.

Great!

>THe huge numbers of pills is because the drug has a tiny halflife in the
>body - not because its a horrendous overkill dose.

Ahhhhh!!   I see now

Yeah i guess that is why I was a bit concerned abt side
effects.  I read the instructions and it said take FIVE
200 mg pills daily. I thought...wow... that sounds like
a lot of meds.

Anyway.... Im clear on the "half life" aspect of
Acyclovir now!

Again... thanks guys!
Tim Fitzmaurice - 10 Sep 2003 19:01 GMT
> >Cold sores are caused by Herpes SImplex virus...Acyclovir is an antiviral
> >drug that targets Herpes Simplex Virus. Its pretty much a perfect target.
>
> Great!

Isnt it just :)

> >THe huge numbers of pills is because the drug has a tiny halflife in the
> >body - not because its a horrendous overkill dose.
[quoted text clipped - 5 lines]
> 200 mg pills daily. I thought...wow... that sounds like
> a lot of meds.

ACV is a pretty benign med - the rate of side effects is very low and the
extent of them is pretty limited. Most usually only kick in when its taken
intravenously.

> Anyway.... Im clear on the "half life" aspect of
> Acyclovir now!

Yes, if I remember its about 0.7 of an hour half life....this is why
although you can use it to treat animal like a cat for Keratitis from
Feline herpesvirus 1 you newed to treat that often to get results but try
to tell the cat that....

Tim
--
When playing rugby, its not the winning that counts, but the taking apart
ICQ: 5178568
john63401@yahoo.com - 10 Sep 2003 20:10 GMT
>Yes, if I remember its about 0.7 of an hour half life...

Wow that really is a short half life!

Definitely explains why you are supposed to take 5
pills a day!
Tim Fitzmaurice - 11 Sep 2003 09:43 GMT
> >Yes, if I remember its about 0.7 of an hour half life...
>
> Wow that really is a short half life!
>
> Definitely explains why you are supposed to take 5
> pills a day!

THis is one of the reasons valacyclovir exists. The pill load drops from 5
doses per day to 1 or 2 for the same efficacy.

Tim
--
When playing rugby, its not the winning that counts, but the taking apart
ICQ: 5178568
john63401@yahoo.com - 11 Sep 2003 14:40 GMT
>THis is one of the reasons valacyclovir exists. The pill load drops from 5
>doses per day to 1 or 2 for the same efficacy.

Ahh.... cool!

Tell me..... is there anyway to explain in laymens
terms what something like acyclovir actually does to
the herpes virus?

I mean..... does it "fool" it somehow.... kill it...?

By what "mechanism" does acyclovir help herpes?

Just curious on that is all.
Tim Fitzmaurice - 11 Sep 2003 15:02 GMT
> >THis is one of the reasons valacyclovir exists. The pill load drops from 5
> >doses per day to 1 or 2 for the same efficacy.
[quoted text clipped - 6 lines]
>
> I mean..... does it "fool" it somehow.... kill it...?

Kill it is the closest. When the virus gets into the cell it drops the
outer coat of protein and lipd and becomes a circle of DNA that simply
copies itself over and over.

Acyclovir is whats termed a guanosine analogue - essentially DNA has four
letter in its code A,C,G and T. A guanosine analogue mimics the letter G.
In this case ACV is the G without 3 extra chemical bits (3 phosphate
groups to be precise).

The virus has a protein called thymidine kinase that adds the first
phosphate to the acyclovir, the body then adds the other 2 and it gets
inserted into the DNA chain the virus is making, stopping it and so
preventing the virus from replicating. It doesnt hit the rest of the body
other than infected cells because the body cant add that first phosphate
only the virus protein can do that so the rest of the process only happens
in infected cells. Also the body's DNA making enzymes dont get involved
and wont use the acycloivr when its had all the extra bits added so thats
another layer to prevent it breaking your own DNA chains (as well as the
basic of human biology).

Unable to make new DNA chains the virus  stalls and the immune system
eventually clears away the infected cell during which time the virus DNA
gets chopped to bits.

Tim
--
When playing rugby, its not the winning that counts, but the taking apart
ICQ: 5178568
john63401@yahoo.com - 11 Sep 2003 15:42 GMT
>Unable to make new DNA chains the virus  stalls and the immune system
>eventually clears away the infected cell during which time the virus DNA
>gets chopped to bits.

Very cool!!

Thanks Tom   (and others)...... Ive learned a LOT!

Again thanks!!
 
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