There is no healing for the Shaman.
He most likely banished the disease.
But the interview (I note, it was a structured interview, so you can't nitpick the meaning of the questions) proved that Ment is not Mafia.
Shall we hang Yashur for his brazen and stupid attack? There's nothing else to do anyway.
Added 3 minutes later
oven666Snowman, you're acting suspiciously again: Tox can't be Mafia, at least because Bard tried to persuade him to join the "good guys" on the first night!
But the fact that you suggested it first, doesn't that mean anything? Or was it not you, I don't remember anymore.