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.
(..) in this place in the first place. Shouldn't have landed on this damn ball, I know that. Shouldn't have landed on this damn ball, I know that. Well, the sooner we patch this thing up and get out of here, the sooner we can go home. This place gives me the creeps. That's amazing. (..)1979 Alien