Acyclovir and valacyclovir (VCV) however are amongst the safest drugs we use, causing few
side effects. Thus, if your renal function
is normal and you really do have HSV, there
is no reason to be concerned about the dose of valacyclovir your doctor has suggested.
Resistance to VCV is uncommon but does occur, typically after a person has taken the drug for a long time.
Hope these comments are helpful to you. Please make sure this is HSV.