I finished FCR just over 3 months ago. I actually only had 5 sessions as I had responded so well. For the first 6 weeks or so, I was on cloud nine, but then all my muscles started aching. I felt like an old woman when getting out of bed in the morning, or getting up from a chair. My GP said lots of people get this after chemo, but has done some blood tests just to be sure it's nothing else. I finished taking Aciclovir about a week ago. I have had a cough & cold for nearly 3 weeks, but it seems to have got worse in the last week. I also developed a big blood blister on my lip, plus a painful sore on the roof of my mouth. Today I'm feeling rotten, with a temperature of 37°. Has anyone suffered any after effects after stopping Aciclovir ?