What do you do?

What do you do when someone you love is really sick and you feel like they are giving up? Of course you don't wanna believe it and you wanna believe that they are gonna be ok but there is still that one part of you that thinks they might give up. All you can do is sit and wait to see if the person will get better or get worse. And just be there for them during the hard times and the easy times. Prayer also helps.