well, exactly. I mean, yea; it's a real allergy, but how is that going to effect game play? how many villians are going to have a penacillin laced sword? it would be cooler if you were just alergic to 'mould' in general, at least then you wouldn't be able to visit your chummers with a low lifestyel kuz their place was full of it.
I think a flaw should be something that can come up once pr. adventure, for every point it's worth.
-RuskiFace the Pirate