1) The one I protected my friend from cleansing I think was Hex: Ruin, but I make a habit of trying to break all of the other ones anyway to make sure the killer doesn't get to use 'Hex: No One Escapes Death' at the end of the game where he/she can down you with 1 hit instead of 2
it's way too commonly used by killers, so I used a map in this game to try and locate them all. Unfortunately, it was a SpookyMyers.
2) There's a Claudette perk called 'Self Care' (sometimes you can buy it in the Shrine of Secrets in the store, but I think it's rare because it's so important to use) where you can heal yourself at 0.5x the speed of being healed by someone else.