Definition
A viral infection with possible recurrent outbreaks; transmission can occur without visible lesions.
Symptoms
Blisters, painful ulcers, burning and sometimes difficulty urinating.
How it may be discovered
First outbreak or recurrence; symptom timing does not date acquisition.
When to seek care
Prompt review for a first episode; retention, neurological signs or severe illness is urgent. Report pregnancy.
Investigations and tests
Sampling of a fresh lesion when possible and examination.
Reaching a diagnosis
Testing can confirm infection but cannot identify who transmitted it.
Treatment options
Antivirals for outbreaks or selected suppressive therapy; avoid contact during lesions and discuss prevention.
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