The warforged seem to have little more information to give, so I am in favor of getting DePoe to a healer as a priority.
Ogham has no spells of antivenom prepared, so either it's returning him to a healer, or waiting a Long Rest so that Ogham can prepare such a spell.
Edit: Wait, reading through the druid spell list, I see that there is no such 1st level spell! So Ogham is pretty useless in this regard, except to heal hitpoints.