Factual error: It is not possible to be "allergic to all known anaesthetics". Amongst the amide local anesthetics lidocaine, prilocaine, bupivicaine, mepivacaine and dibucaine are naturally occurring substances and if administered without a preservative they cannot trigger an allergic reaction. If Bales is allergic to them, he'd be allergic to the metabolic processes of his own body. They are all powerful local anaesthetics and could easily be used for a radical rhinoplasty such as that required by Bales.
Charlie: Ten more seconds and I'm leaving! Ten-
Roxanne: What did you say?
Charlie: I said ten more seconds and I'm leaving.
Charlie: What did you think I said?
Roxanne: I thought you said earn more sessions by sleeving.
Charlie: What does that mean?
Roxanne: I don't know. That's why I asked.
Charlie: What a waste of an opportunity. You have THIS in front of you, and all you can think of is 'Big Nose'?!