That did look pretty bad, no doubt. From the looks of it Bruce is already categorizing the injury and the most likely cause of it before starting to run though the best ways of treatment that didn't involve the use of magic. The temptation was always there, yes, but doing it without magic was always more beneficial for all parties involved.

"It's not a bother at all," he says to reassure her first, then reaches out with his hands hovering close to hers so that he can better study the injury. Burns, just as he thought, although it wasn't anything too bad. Nothing a bit of herbs and poultice couldn't fix.

He steps back once he's seen enough and turns to his bag of supplies, opening it up and rifling through them while he asks her more questions. "What was it exactly that you burned yourself on? Soup? Hot metal?" The more specifics he had, the easier it would be to treat her injury.