Circumcision falling off sideways

Plastibell has come off almost all the way and holding on by a tiny piece of skin today on day 9. No bleeding and It is sitting on sideways and he barely has the tip showing so he can pee. The hospital said not to put anything on there when discharged but I'm wondering if it will help it detach so he isn't in pain. The string is still on there as well.. what should I do?