If an oral lesion appears consistent with herpes labialis, what is typically the next action?

When an oral lesion appears consistent with herpes labialis, the typical next action is to prescribe an antiviral medication. Herpes labialis, commonly known as cold sores, is caused by the herpes simplex virus, and antiviral treatments, such as acyclovir or valacyclovir, are effective in reducing the duration and severity of the outbreak. Early intervention with antiviral therapy can help to manage the symptoms more effectively and may decrease the likelihood of recurrence. This approach is supported by clinical guidelines and is a standard practice in managing herpes simplex virus infections.

In contrast, performing an immediate biopsy is generally unnecessary in cases of herpes labialis, as the clinical characteristics are usually sufficient to make a diagnosis. Applying topical anesthetic may be helpful for symptomatic relief but does not address the underlying viral infection. Monitoring and documenting could be considered if the lesion is atypical or if there is uncertainty about the diagnosis; however, with a clear presentation of herpes labialis, proactive antiviral treatment is the preferred course of action.