Baby umbilical cord stump?

Can anyone tell me if they think this looks normal. There really isn't any drainage and the big crusty (sorry tmi) thing is barely attached. But it smells awful! Like rotting flesh awful... I did what the Dr said and wiped around it with rubbing alcohol which cleaned dit up a bit and took away the smell... is it normal to stink like that? When does it usually fall off? I'm so ready for it to the gone so I can bathe him!