Chiefsonny wrote...
Is there a way to prevent this. If not is it permanent?
Playing as a Human Fighter.
Thanks
As a fighter you will have access to bows... so the easiest way is to depend on your typically mediocre Dex ability, drink a few Cat's Grace potions, stock up with a few stacks of acid arrows and kite them.  Pretty easy against shadows if you can stay hasted, even against vamps.  The shadow touch attack allows no saves and it is bugged so that they get a drain attack every hit.  Fortunately, they have low HPs and do little damage beyond the level/ability effect.
Against evil cleric/arcane casters, your Fort saves should save you most of the time.  A few gulps of Endurance never hurts either.
Otherwise, you'll be dependent on either immune items (as mentioned before) or a UMD dump class so you can use protective spell scrolls.
There is NO easy way for a meleer to deal with shadow types without reading lots of restorative scrolls during combat (very expensive and temporary).