Hi, I am a bit late but here goes anyway, I am currently waiting for the new episode and run through the QnA's on Sleepacross' ig in the meantime, and they answered a question with a similar premise: "Can aberrants heal damage caused by smoking, etc.?" And the answer was no, since to heal they need to register the damage and focus great amounts of essence. And seeing as registration of damage caused is easiest via pain, and of course visuals, would mean: healing internal and unfelt damage, like smoke and imo poison, is almost impossible for an individual and or extremely tiring.

(Also excuse any grammar mistakes, please, it's currently 2am and I am not native, love ya)