Legit Question: We Should care Lee his Staph from NSAC

Having fought a guy with &$@?ing staph all over his chest in an mma fight, this kinda thing is a problem. I am in the cage. The other guy comes into the cage and now I'm looking at a guy covered in staph. Do I want that in my eye? Or on me? I can't refuse to fight because I'll look like I'm scared or worse yet it's ruled a loss. At any rate, what's the point of having an athletic commission if guys like Benson Henderson has a small wooden toothpick in his mouth (could &$@?ing blind his opponent inadvertently) or guys traipse into the ring covered in a highly contagious visible infection?