FUCKKKKKKK. Just unpaused game to start back up and see this shit

Down side to it taking so long to clear two areas.

So, thats where i'm at. Sitting in town contemplating life and how to get around uber diablo. Bish is already dead but i'm still in cold plains. Since i'm full clearing i either have to clear around him and skip him for now, or kill him. Dunno if i can. Resists are maxed and have a lifetap wand but his hose does so much dmg.
WHAT DO I DO