One of the rare instances where the flavor of the card complicates its interpretation.
Does "you heal 1 or more horror" imply the trigger occurs when you are healing yourself, or when you (the player) heals 1 or more horror from a card using a card effect? The strictest interpretation would be that Private Practice triggers only when you self-heal from horror, but that wouldn't make sense when one considers the flavor of the card, which
- very prominently features someone working to heal someone else's "horror"
- refers to a Profession in which exactly that person-to-person process happens
- references two people in its flavor text.
So far my table's decided that the flavor overrides the strict rules text, and it triggers whenever Carolyn (because it is always Carolyn) heals horror from any card, by any means.