I once had a FB that caused nausea and massive swelling (and subsequent rot) of all body parts. Fortunately only two dwarves got the syndrome, one of which sucumbed to the swelling and the other which is still swollen as a watermellon and hasnt stopped vomiting for over a year. Honeslty Im puzzled as to what to do with him because hes getting vomit EVERYWHERE but hes a valuable member of my cavern defense militia.
Hahahaha. Love it! Maybe give him an entrance-burrow to defend. Then, he can vomit in the face of the enemy, then slay them. Is he competent, and does he pass out at all?
I use cleanmap to prevent spread of FB disease. Since I spent over an in-game year making a dwarven bath system at the entrance to the caverns, complete with grates and drainage system plus a lovely waterfal I expect it to work as such and not a pool of contaminants. And on top of that it requires a yearly maintenance in the form of chopping down all the godam trees that keep clogging the water cannals
If I want a godam pool of poison I have a FB with deadly secretions (that I ocasionally let my marksdwarves use for target practive) swimming in my fortified cavern dam that has almost replaced all the water in there with FB extract pools. Hes become the unnoficial pet of the fort along with a quadruped made of scist that is also trapped swimming there and is also used as a training pincussion for marksdwarves.
Alas, I prefer to not use third-party programs, so cleanmap's out in my case. However, after a last-ditch mass-enabling of diagnosis, surgery, and related skills, things seem to be .... in hand. At least, no one has died yet. Hell, a couple have even gotten back up and about. It's fifty-fifty on whether they head right back to rest, though. I'm hoping for better extract- and syndrome-management tools .... someday. This sort of thing should be a bit easier to control. I shouldn't complain; I had twelve years in this fortress without significant troubles. It still seems we're lacking some tools to deal with what the game throws at us.
The sustained and constant release of miasma in the hospital is starting to disturb me. Glad the rotters have some spiffy chefs feeding 'em.