My Mum has started constantly picking. Picking her nose, picking about in her teeth, under her nails, picking at scabs (her arms are bad where she's picked at them and made them bleed). It drives me mad as she does it when she comes to my house and whatever she picks she flicks on the floor. I know I sound awful/she can't help it/I should just ignore it, but it's not nice and makes me feel ill. Do I just have to get on with it? Is this a phase that will pass?