Wait until the camphor in that salve starts working. Should do the trick.

I'm sorry, Kanji-kun. I wasn't expecting that..... [She examines the bottle of alcohol.]

This is 100% pure isopropyl alcohol? I'm used to using something much less strong. Goodness gracious. What you modern people haven't got....

[She gets out a bandage and wraps it delicately around his finger, being extra careful now.]

You know, I once cleaned a man's sword wound with nothing but a half-drunk saucer of sake? [She chuckles a little.] And he healed up just fine, not a mark left.