I completed round 6 of FCR in March. I've been building myself up and was beginning to feel somewhat normal again when 10 days ago I got shingles. Can I ask anyone out there who's had FCR how long you took antivirals for after treatment ended? I was told to stop after 2 months. Now I have shingles. Other people seem to have continued for 6 months. I would appreciate some information on this as I would like to prevent others suffering by suggesting to the haematology unit a possible increase in the course of antivirals post treatment.