I think it appeared a few months ago (its in a hard to see place) but its now about 5 mm across, ragged, dark raised centre. I dont think it itches but because I'm thinking about it I'm not sure.
I cant get a appointment for about 8 weeks! Given its been there for an unknown number of months is that ok? I'm half worried and half thinking 'oh its fine, maybe its been there ages, dont make a fuss'