I think a little bit of aluminum deodorant is OK over the short-haul. We here have so many things going on that it's hard to be perfect on all fronts. I hear what @Bobo is saying and I have personally stopped using deodorant for the most part. No wonder my wife won't sleep me! But, I still take a PPI to control my acid reflux and I know these things are BAD. I've tried stopping, but I can't control the burning otherwise. Sometimes we have to choose our poison, if only for a time, until we get other things sorted out.