remove all arrows from your inventory, or wait till you get shot again from an NPC enemy and they will disappear
Wow! That is a really not so professional way of having to fix an in game issue. I have to get rid of all my arrows? Unbelievable. They do not disappear, by the way, when I enter another encounter and get hit by other enemy arrows. i just get more arrows at the end of the encounter. Now, I also have what looks like a blue ice shard sticking out of me from an encounter in which an NPC enemy used some sort of ice spell against me. This is absurd and highly annoying.