Had it three times now, first was about 10 years ago, very painful. Two weeks of Acyclovir cleared it up.
Then got it four months ago again strangely not so painful, but I only took one week of anti-viral, as I thought it was clearing up quickly, that was a mistake as three weeks ago hit again, still taking anti-viral. Looks like its gone, but doc said keep taking a smaller dose for longer
All this happened in Thailand