Well, cold sores are caused by all of the acid that goes into your mouth. For instance, maybe you're drinking too much soda. So, all you have to do is:
-don't drink soda all the time
-drink milk and water
Hope I helped!
Perhaps this person from the first answer is thinking of canker sores that are inside the mouth.
Cold sores/fever blisters are the same thing.
Their medical name is Herpes simplex 1. It is not the same as genital herpes simplex 2 but the same family.
Herpes (cold sores,fever blister) is a virus with no cure. Once you got it you got forever. But the intensity and frequency drastically decrease the as the years go by.
So there is no way to prevent an outbreak but there are certain triggers: a fever (hence the names-fevers come with colds) & time in the heat and sun (because it makes your body hot).
Only one thing was ever effective against mine & it was anti-perspirant. Put it right on the sore right thru the blister & then the scab stage.
Where my sores would last up to 2 weeks - with anti-perspirant they were gone in 5 days max.
It dries out the blister makes it scab in a 10th of normal time & then dries out the scab so much it falls off after 1 or 2 days.
It makes sense, of course, cause anti-perspirant is made to keep skin dry .
Medications will help by reducing the intensity and frequency of cold sores. There is no guarantee of any known medication today, that will prevent cold sores.
It is difficult to prevent cold sores; if you are infected, lower the stress on your body, such as not getting a cold or the flu, not getting enough sleep, or staying in the sun for long periods of time without applying sunblock.
Amino acids are essential for the body to function properly, including in the development and treatment of cold sores. Certain amino acids, like lysine, can help prevent the replication of the virus that causes cold sores. Additionally, arginine, another amino acid, can trigger cold sore outbreaks. Therefore, maintaining a balance of these amino acids through diet or supplements can help manage and prevent cold sores.
Bactroban is not effective for viral cold sores.
Cold sores aren't airborne.
You don't get cold sores from the wind.
Cold sores are very contagious.
Cold sores are caused by a virus, and polysporin is not active against viruses, so it won't work for cold sores.
They do have cold sores in South America.
Cold sores aren't bad but they can be painful.
Cold sores look like a blister.
You can get cold sores from hsv-2.