A short rest can restore a bit of chakra... Soldier pills can help the fatigue a little bit too. :P<br/><br/>There's always Iryou Ninjutsu: Ryoji - Kentai or Iryou Ninjutsu: Ryoji - Kekki as a temporary solution as well. So far Konoha has most of the medical ninjas in the world, but Tani being their ally has a few as well.