He's going through a bad/difficult/rough 'patch' [='spell'] right now.
The chair's original paint is still visible 'in patches'. [=in spots]
The doctor 'patched' him 'up', so he's going to be as good as new.
(..) - We're four hours behind! - Don't worry. We'll make up the lost time. Isn't Boarder done with that cable patch yet? He's still working on it. Keep in mind, it took six hours just to compress him (..)2002 Shark Attack 3: Megalodon