well it sounds like he has a retained eye cap just wait till next shed and hopefully it will come off
the clogged nostril and bubbling sound are tell tale signs of a Respritory Infection wich is not good
to fix that your going to need to tell me what the heat/hummidity in your tank is
and i will tell you what you need to do to fix your problem. RI's are do to improper husbandry conditions