When he heard that the fight was over, Vis sighed and leaned back on the stone wall he used for cover. But as he did he whinced, he had forgotten about the laceration to his back, looking around to see if the healer was available, he found that she was tending to the more serious wounds of the paladin. Deciding that he'd try to fix himself up, Vis undid his armor and let his white skin breath, after having been locked up in the leather armor and sweating. 
Reaching behind him, Vis traced the length of the wound with his finger, biting his tongue as he did to not yelp in pain. After guesstimating the length of the laceration, he pulled a needle and spool of thread from his bag and went to work choosing the correct length and threading the eye of the needle. Using his left hand to pinch one end of the wound shut, he reached back with his right and started to slowly sew the wound shut, whincing each time the needle passed in and out of his skin. Once he was done, he cleaned the wound out with water and re-approached the group, his white shirt flung over the shoulder that wasn't injured, "are we all good?" he asked no one in particular.