Ulcers

Ulcers aren't fun. I don't think that statement will elicit many arguments. I have a painful one on my tongue at the moment, and I was sensible enough to avoid putting balsamic vinegar on my salad this evening. That certainly wouldn't have been a pleasant experience.
Applying ulcer medication is another unpleasant experience. It stings for about a minute or so, but the longer term benefit is definitely worth it.
The specific stuff that I've been using lately isn't, as far as I'm aware, available in Australia, which is frustrating as it's a lot more effective than anything else I've ever tried. I'll have to visit France again to top up my supplies when the current bottle runs out.
I bring back boring souvenirs from France; ulcer medication and deodorant (I can't get the deodorant I like here either).