He's concerned by the way the wounds are closing; it's way the hell slower than it should be, and maybe whatever species the princess is doesn't react as well to the dermal regenerator? But that's impossible, the epinephrine worked so the dermal regenerator ought to, too. Once the wounds are closed, he whips out the tricorder again, checking her vital statistics, eyes scanning over the readouts, then goes for a painkilling cartridge, pressing it to her skin and firing it into her veins, trying to ease her wracking.