Kylo hissed when the gauze hit the open cuts, but he let Han work without lashing out. At least, not physically.

"Pain is just... a conduit of the Force. Fear. Hate. Suffering..." He scoffed. "You did a fine job preparing me for my destiny."

It was difficult to tell if that was supposed to be a compliment or an insult. Perhaps it was just a way for two relative strangers to make conversation without discussing the real matter at hand - such as where this ship was going and what plans Kylo Ren had for his hostages.