Thank goodness for Maxed Charm. Once the girl was breathing properly, Ren does keep speaking with the young girl to give comfort as well as see what he needs to do.

Ren accepts the cream from Kazuma, not caring about the smell. When he notices the girl's reaction to it though, that gets his attention.

"I know it smells weird, but it will help you heal your wounds."

He starts to work on gently spreading the cream over the girl's bruises.