Game concept
Medical Treatments
From the game's encyclopedia
When a character becomes Ill or Wounded a Medical Treatment can help them recover faster.
The one responsible for treating you and your Courtiers is the Personal Physician. Try to always have one employed if you can afford their salary.
The more treatments a Personal Physician performs, the more their skill will grow, granting them Novice Physician Traits.
The game's text for patch 1.20.1.2. Words in blue are entries of the encyclopedia: hover one to read it, as in the game.
Medical Treatments is an entry of Crusader Kings III's in-game encyclopedia. The game explains it: "When a character becomes Ill or Wounded a Medical Treatment can help them recover faster." Patch 1.20.1.2, from game/common/game_concepts/00_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.
Source: game/common/game_concepts/00_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.