Valtrex immunity?

I have been on Valtrex once daily for about 4 years. I have not had outbreaks except for maybe twice a year, lately it has been about every other week. It seems that every time that it goes away 3 or 4 days later it comes back. It is possible to have an immunity to Valtrex? Should i get my dosages highered? Or is there any other medications that i could take?

[gracefromHHP]

At this point what you need to do is find out what is really going on.  there is a less than 1% rate of developing a tk resistant dominant infection with hsv2. It happens, but not often. Most often when folks think that suppressive therapy has stopped working for them - it's because what's going on isn't due to herpes.  Go see your doctor and get a full exam including a culture of your symptoms and go from there.

grace