Harry was relieved that his identity was confirmed. He understood, but it still wasn't fun to be doubted. He took out his wand and healed the cut on her forehead. He'd gotten much better at healing charms over the last year out of necessity.
"For what it's worth, I can only do wordless magic under extreme duress. Like running for my life kind of duress. I'm sure you're better at it than I am."