Phoebe has a dark coloured 'scab' on one of her front feet. The vet says it's nothing to worry about - too much keratin being produced. It's unsightly but doesn't seem to bother her at all - except when I tried to move it away from her foot to see what it was. It's definitely not loose and she's not happy about it being messed with. Has anyone else experienced these and if so, what did you do? Thanks x