The new Hemorrhage change is interesting, and could possibly be the answer for CoH...
...If the devs are willing to try to tackle the perk in a decent way.
Make CoH healing apply hemorrhaging (until fully healed of course) if the perkless selfcare is the method of healing. This is the bare minimum I would recommend to address the perk, especially since it does nothing if the survivor is not interrupted in their healing. Now for what would make this much better:
Healing with CoH reveals your aura while healing, similar to Nurse's calling but without range restrictions. Also shows any survivors doing the healing.
This way the killer is incentivized to go into the heal zone and interrupt the heal, get information for the "power zone" around the boon when relevant, and be given a general idea of the area the boon is positioned in. Of course they only get this information if they witness it, no noise notifications or anything (outside a failed heal check of course) and the killer might not even be able to prioritize that information at the time.
This would substantially help hit and run killers (namely stealth ones) who have been especially affected by the perk's strength, and would be a lot less hamfisted than, say, making it unable to be reapplied since that was apparently how pentimentio needed to be balanced or something I guess.
Comments
Having the survivors aura be revealed while healing in CoH be overkill and be too beneficial for the killer. Rather just let the hemorrhoid changes go through first then decide. The hemorrhoid changes seems let the right step first before butchering CoH.
I don't think it's a good idea to make Nurse's Calling base kit for all killers, especially since the reading radius would affect the whole map
CoH is strongest when placed nowhere near places the killer has reason to patrol/chase/etc, Half the reason being how much time they have to waste to put it out. The aura reading would give them a little bit of info for when they can't waste tons of time to try to capitalize on the hemorrhage effect. Also gives them an idea of where the boon is, so they can at least minimize the time wasted trying to find and snuff it out.
Indoor maps where boon radius can cover multiple floors is a big reason for that aura suggestion, especially on maps like the game and midwich. Even then it still doesn't show you where the boon is (let alone what floor) so its not nearly as strong as you might assume.
it... wouldn't be? It would just be a downside to using the perk to heal for free, similar to how everything on the killer side is "gives x, but has Y downside when used." CoH needs a fitting downside since reworking boons entirely would basically kill the other ones in the process.
The downside of CoH just like any other boom is that it makes you waste time that you could be investing in generators. The specific problem with CoH is, unlike the others, it is much more consistent and less situational, which could be solved with an increase in the totem's blessing time (or some token or cooldown system)
It costs the killer more time and pressure than it does setting them up, and the benefit of being able to heal without a medkit in a corner of the map the killer will never go to far outweighs being able to snuff it out and not even remove it. Blessing time has never and will never be a big enough penalty, as it doesn't address the actual problem with the perk. You can bless and rebless multiple times and still get enough value to completely invalidate hit and run playstyles, while the killer snuffing the totem only slightly pauses said value by comparison. Those two aren't even close to even with each other, so a change that gives the most affected negatively a chance to counterplay is the best solution.
Just in case I wasn't clear in the first part: A survivor blessing a totem leaves the killer looking for/chasing 1 survivor, with still another 2-3 to spare working on gens. The killer taking the time to walk over to and find the totem is often a MUCH bigger time sink than the 2 seconds snuffing the totem. It completely removes their pressure and resets their chase progress while simultaneously having zero impact on the 3+ survivors just holding M1.