I have genital herpes - confirmed by culture and blood test. After initial outbreak, I was prescribed Valtrex to use for a recurrence. Very bad headaches resulted. Was discontinued. With next occurrence, I asked for another anti-viral and was prescribed Acyclovir. This one caused headaches, backache, confusion and fatigue. Was stopped. I am now having a recurrence and didn't take anything. After about 7 days, I felt it was almost over, then wham....came back with a new leison and flu-like symptoms. Tried Acyclovir before bed last night, was up most of night with headache. I haven't taken anything today. I don't know what to do. Can anyone help me?