Welcome to the STD for
The direct answer to your opening question is yes, valacyclovir (valtrex
) sometimes can affect the HSV
blood test. However, probably not in the way you describe here. If someone has new HSV
-2, treatment with valacyclovir (or any of the other anti-HSV
drugs) can delay the conversion of the blood test from negative to positive. However, once the test is positive, treatment cannot make it negative again.
There is a good chance you do not have HSV
-2 at all -- i.e.