Here’s the best advice I could give anyone coming (or living here for that matter) to visit Thailand or any Asian Country.
Always, always carry “Disento” with you.
Very inexpensive and effective. Eat, drink something and feel that churning, gas and other problems starting in your stomach – grab your Disento – gone!!!!
Wish I had this stuff years ago when I visited Mexico – Montezuma’s Revenge would have been a thing of the past – get some and try it the next time you travel or have a drink with local ice.