The witch’s aura purifies the air around her. Diseases, inhaled poisons, and noxious gaseous effects (such as stinking cloud) are negated in a 10-foot aura around the witch for a number of minutes equal to her level. This duration does not need to be consecutive, but it must be spent in 1-minute increments. Effects caused by spells whose level is more than half the witch’s class level are unaffected.
Does this also cure those that are already effected by the diseases, poisons, etc. by the breathable effects? Like someone gets a stinking cloud cast in their area and the witch comes in and negates the cloud and the nauseated effect that the person got from the cloud?
I'd say they don't get healed, but the efect is negated.
They don't suffer any penalties (or benefits) asociated with those, and the duration still counts towards the expiration when relevant.
