Just a couple of suggestions, easy to tote that can be put away and will be there if needed for future. Both are over the counter remedies and seem to work for others when I have suggested them, they worked for my Teddy.
Itching, a cream called Sarna. Can not get it anywhere but in the states at a CVS or Walgreens.
Hiccups or indigestion, Briosche also at same drug stores. Just pack them in plastic with your clothes. Safe travel to you!
P.S. Don't think those foods, while not great, play as big a part as perhaps contaminated fish with a parasite called liver flukes. Actually no diet that I know of has played a part for or against CC. It's just the strangest cancer monster ever!
Teddy ~In our hearts forever~ATTITUDE is EVERYTHING
Any suggestion I offer is intended as friendly advice based solely on my own experience. Please consult your doctor for professional guidance.