[sblock=Not HolyMan's Players]You should resolve filth fever at the end of the adventure, one way or another. If it were another disease, that you can't die from, I might say just let it go and not worry about it, because the PCs will eventually make 2 saves in a row and recover on their own, and then the ability damage would just go away in time. But Filth Fever does con damage, which can kill you if you fail enough saves. Thus, it should be resolved.
What I would do is this. At the end of the adventure, once everything else is resolved, tell the affected players something like this: "You wake up the next day with a burning pain in your wounds, and shaking weakness in your limbs. (ooc: you are diseased, take 1d3 dex and 1d3 con damage and make a DC 12 Fort save each day or take the damage again. 2 saves in a row cures the disease.)" Basically, you should stay with them until they either a) make 2 fort saves in a row, at which point the ability damage can be handwaved, since it will go away in time, or b) pay 150g for a 5th level cleric to cast Remove Disease on them, or c) find a PC to do it. If you feel like being nice, you can add extra treasure to compensate for the cost.
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