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None. Antibiotics are poisons for killing bacteria, they do not work on a virus, which is the causative organism in cold sores (Herpes Simplex Virus). There are anti-viral medications that can be prescribed to help lessen the cold sore symptoms and duration, however, which are: valcyclovir, acyclovir, and famcyclovir
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoYou shouldn't use antibiotics for cold sores, they won't do any thing for it. You should use creams like Abreva or antiviral medication. Cold sores are caused by a virus, not bacteria which is what antibiotics treat.
Wiki User
∙ 11y agoNo, since antibiotics are for treating bacterial infections and cold sores are caused by viruses. There are antiviral medications that treat cold sores: acyclovir, valcyclovir, and famcyclovir, however, they usually must be started as soon as symptoms develop to be most effective.
Wiki User
∙ 8y agoAntibiotics do not cure cold sores because cold sores are caused by a virus. The Herpes virus causes cold sores, and there is no cure for viral infections. You can ask your doctor to prescribe some antiviral medications to help make you feel better and reduce the length of time that you have the infection, but there's no actual cure.
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Does polysporin work on cold sores?
Cold sores are caused by a virus, and polysporin is not active against viruses, so it won't work for cold sores.
Can amoxicillin help a fever blister?
No, cold sores are caused by a virus (Herpes Simplex) and since amoxicillin is an antibiotic, it would have no affect on the virus. Antibiotics only work to kill bacteria, they are not effective against viral infections. There are anti-viral medicines that can be prescribed for and do help relieve cold sores. Ask your doctor if your cold sore could be treated with an anti-viral.
What are some treatments for cold sores, particularly in the winter?
I always had good luck with Abreva as a treatment for cold sores. It does work very well in the winter also. You Doctor will give you the best medication for your cold sores.
Can you use bactroban for cold sores?
Bactroban is not effective for viral cold sores.
Do you get cold sores from the wind?
You don't get cold sores from the wind.
Are cold sores contagoues?
Cold sores are very contagious.
Are cold sores airborne?
Cold sores aren't airborne.
Do they have cold sores in South America?
They do have cold sores in South America.
Are cold sores bad?
Cold sores aren't bad but they can be painful.
Can you get cold sores from hsv-2?
You can get cold sores from hsv-2.
What is the appearance of cold sores?
Cold sores look like a blister.
Can biaxsig be used for treatment of cold sores?
Biaxin is an antibacterial agent, and cold sores are viral, so it is not effective for treating cold sores.
