If your cold sore is especially painful or irritating, your doctor may prescribe an anesthetic gel to alleviate pain or an antiviral oral medication to speed healing or prevent recurrence. The antiviral medicines available for treatment include acyclovir (Zovirax), famciclovir (Famvir), and valacyclovir (Valtrex).
Also asked, what is the best product for cold sores?
Prescription creams and ointments
- Penciclovir cream (Denavir) is an antiviral cream that may reduce healing time by 1 to 2 days, especially if the cold sore was triggered by sunlight exposure.
- Acyclovir ointment or cream works best if it is used at the first sign of cold sore symptoms.
What drugs does Valtrex interact with?
Interactions. Some products that may interact with this drug include: other drugs that may cause kidney problems (including nonsteroidal anti-inflammatory drugs-NSAIDs such as ibuprofen, naproxen). Valacyclovir is very similar to acyclovir. Do not use medications containing acyclovir while using valacyclovir.
Can you use Valtrex for cold sores?
In adults, it is used to treat shingles (caused by herpes zoster) and cold sores around the mouth. Valacyclovir is also used to treat outbreaks of genital herpes. In people with frequent outbreaks, this medication is used to reduce the number of future episodes. Valacyclovir is an antiviral drug.