@Sanctaphrax - how would you propose to limit it, then, without removing this option outright?
I'm not Sanctaphrax, but I'll try to answer.
I'd personally favor not being able to heal self-inflicted consequences, unless they weren't of free will (read: mind control). However, if you were set on being able to heal it, a couple options:
*You can use your recovery abilities
once per session or scenario in this manner
rather than once per scene- I'd personally favor 1/scenario so self-inflicted consequences have more weight to them than the usual ones inflicted in combat- especially since there's a conscious choice involved, a big thing in DFRPG. (reminder, the breakdown is scene-session (gaming night)- scenario (story arc, usually including boss fight)- campaign (overarcing story, megaboss at the end).
*You can spend a fate point to activate this ability,
provided you have a relevant aspect to invoke (ex: PAIN IS IRRELEVANT aspect could handle physical/mental, and NO SHAME could handle social.)
*For self-inflicted consequences, the amount of damage you take is doubled (doesn't make a ton of sense mechanically, but it plays to the DFRPG's concept of choice and levels the playing field).
Some of these are more unbalanced than others, just a few thoughts.