Foul by Hair?

[Kansas Ref]

Did a game yesterday, BV jamboree, couple of players had their hairstyles as those long dreadlocks. You know the type of hair that drapes down to their shoulders and flys all over the place when they swing their heads. Well, A1 (the long dreadlocked player) had the ball and B1 was playing tight defense.
A1 dribbled and spin move dribble, his A1 hair went flailing all over and a big clump of those dreadlocked hair strands swept-struck B1 across the face and on his left eye area. Left a mark on face near eyebrow that was reddish and B1 held his eye area, blinking, expressing difficulty with vision.
Is this a "common foul" or a "play on" type of situation? Caught me by surprise.
What I actually did was kill the play, let B1 go out and get medical attention, then gave possession back to team A. I advised team A coach to put a bunchie tie on A1 hair.