And "something like that" in his statement is not necessarily just filler. Read charitably, he could be asking if a similar effect can be achieved with something else. We use some types of disinfectants for broadly similar effects--like mouth wash. In the past, we've used iodine to disinfect water for drinking, which was ingested.
I'm not saying its a plausible strategy, but its not pants on fire stupid to wonder out-loud if you can get something like a disinfectant inside. I'd imagine you can't, but I can't articulate why you can't beyond the likelihood the required concentrations would destroy your bodies' cells too.
I watched that press conference on tv when it aired. It wasn't even the top 20 dumbest things he said in that conference.
