Valtrex only works while you are taking it. It has no long term effects on your hsv2. Once you stop taking it, all its benefits stop and your hsv2 goes back to its usual shedding rate. There are no known benefits to taking it for 1 1/2 years other than you will have less recurrences during that time and are reducing the odds of transmission to a partner while taking it.
keep asking questions!!
grace
Antivirals halves the transmission rates, that is known. As a female this reduces annual transmission from 4% to around 2% and even less with condoms.
The virus is always there and 'alive'. What is known is that the antivirals are effective of reducing viral replication.
How were you diagnosed with HSV2? Was your HSV properly typed?