I think one of my toenails is at risk of becoming ingrown. I think at some point I didn't cut it straight across and now the corner that is 'lower' than the other side has been digging into the skin. So I've been putting cotton wool under it to lift it up which has worked ok but if I don't put the cotton wool in it just starts digging in again and I'm not sure what to do now, do I just keep padding it until it's long enough to cut straight across or do I need a different approach?