"Very well." he said. "Lie flat, and for your sake, try not to move." he said, waiting for her to get so arranged before he put his hands on her temples, closed his own eyes, and extended his perceptions into the whirling storm of electrical impulses that comprised her mind.
The damage was easy to see if you knew what to look for. It took him nearly a half-hour to safely perform it, but he dampened the signalling, allowing much-abused neurons and signaling pathways time to desensitize and to calm themselves down. It was purely temporary, of course, but it would give the girl some relief.
What he was fervently hoping is that it wouldn't damage the balance levels of neurotransmitters in her brain permanently.