I am very new at this caring for a BP and have alot of new things to learn in the caring for my sisters snake...Silas(bp name) looks to be sick to me his nostril on one side seems to be plugged and this am I noticed he was making a bubbling noise....What should I do and what does this mean....another question being one eye seems to have a layer over it what do I need to do to help that come off?...Thanks to anyone that can help...Christy