I've been on famvir for 4 days now. I get cold sores on my lips that I haven't seen in years. I took long term valtrex. I am getting headaches that diminish every time I take it. Now that it's allergy season. I have not had one allergy symptom. (Which is really weird) When I take it my tremors stop and then when it starts to wear off they come back. When I sleep my puffy eyes go away and then come back. Does that mean it's working? I don't know which is taking over lymes or ebv.