9 doctors weighed in:

Is gentamicin sulfate cream effective for cold sores?

9 doctors weighed in
Dr. steven Present
Dentistry
4 doctors agree

In brief: No

It is only effective against certain types of bacteria. Cold sores are caused by herpes simplex 1 virus. Therefore, an antiviral type of medication is required ie Denavir cream or Valtrex (valacyclovir) tablets. Both require a prescription from your physician or dentist.

In brief: No

It is only effective against certain types of bacteria. Cold sores are caused by herpes simplex 1 virus. Therefore, an antiviral type of medication is required ie Denavir cream or Valtrex (valacyclovir) tablets. Both require a prescription from your physician or dentist.
Dr. steven Present
Dr. steven Present
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Dr. Larry Lutwick
Internal Medicine - Infectious Disease
2 doctors agree

In brief: No

But unless one intervenes early with specific oral therapy, the time to healing with or without therapy is about the same.

In brief: No

But unless one intervenes early with specific oral therapy, the time to healing with or without therapy is about the same.
Dr. Larry Lutwick
Dr. Larry Lutwick
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Dr. Alan Levine
Pediatrics
1 doctor agrees

In brief: No

Cold sores are caused by a virus and, therefore the cream will be ineffective. An antiviral cream or oral medication can be prescribed to shorten the duration of the outbreak.

In brief: No

Cold sores are caused by a virus and, therefore the cream will be ineffective. An antiviral cream or oral medication can be prescribed to shorten the duration of the outbreak.
Dr. Alan Levine
Dr. Alan Levine
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Dr. Thomas Frymark
Dentistry
1 doctor agrees

In brief: No

Gentamicin sulfate cream is antibiotic, useless for virus induced lesions.
Acyclovir ointment can be applied to the sores. Anesthetic creams can reduce acute pain. I recommend keeping yourself fit to fight the viruses with healthy foods and proper sleep.

In brief: No

Gentamicin sulfate cream is antibiotic, useless for virus induced lesions.
Acyclovir ointment can be applied to the sores. Anesthetic creams can reduce acute pain. I recommend keeping yourself fit to fight the viruses with healthy foods and proper sleep.
Dr. Thomas Frymark
Dr. Thomas Frymark
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