Thanks Petey, I feel like a hypochondriac at the moment and keep looking at my tongue for changes - I need to chat to the Dr about what I should be looking for in between appointments and what sort of things I need to call him about. I was thinking that maybe the patch was part of the healing process, but it's bright white (but small) and different to the other areas of my tongue where I had the operation. I will ring on Monday. Thanks for the reply