4) Mints are excellent - just don't ask me why!
A very good suggestion ! One with scientific backing too !
Mint is part of a chemical grouping known by pharmacists as "carminatives". These relax smooth muscle in the gastro-intestinal tract. Release of trapped gas by "burping" is one effect, and less nausea and vomiting could be expected if pressure and tension in the gut was reduced.
"Polo" , anyone ?