Always one step ahead of the regional malpractice authorities, the Hospital Tent can be found in the jungle at all Outposts. If you have the aches, they'll take the pains to fix you. Their ministrations may hurt worse than your injury, but there's an outside chance you might feel better afterward.1)
Healing is free to Level 1 contestants, in return for letting the Hospital Tent's interns poke around in their insides, so new contestants should plan on seeking out the Hospital Tent often - because they're going to need it.