> does your dog not go lame if he looses a nail
No he isn't lame as such but if the quick is exposed or he has a small area of infection then it's obviously a bit tender and he'll sometimes be
careful with his paw - when I see him tippy toeing across the gravel I take that as a hint there may be a problem developing - but even then you'd mostly never notice and he zooms about without any trouble at all. I used to keep my boy at home for a day or so when there was a lot of quick exposed but I've since found that he suffers no ill effects from using his paw on any surface and indeed it hastens the hardening off process. I just have to keep it very clean and stop him from licking it too much.
I hate the bleeding too and we've had moments when he's taken the entire nail off and seconds later I see he's stood in a warm puddle of blood...
Without looking at it I can't really tell but from the sounds of it you'd be better allowing Otto's nail to keep wearing back, as allowing it to regrow seems counterproductive. If he were to get recurring infections or was severely lame on a regular basis you could start talking to the vet about a surgical option but in the meantime I'm not sure that you need do anything much. Incidentally I don't think that Sudocrem is adding anything of value to the healing process - ideally you want it to dry quickly so it can harden off - keeping it moist and damp will delay that process.