Sometimes ciproflaxacin will clear prolonged symptoms at least for me.  Cipro was first recommended and prescribed to me by my doctor ahead of my first trip (along with a typhoid vaccine).  I usually don't have issues however over the three years that I lived in LoS it occasionally happened.  When it did cipro almost always did the trick. During my three years in LoS I also learned to be very careful with dairy products.  As anyone who has visited a Thai market has probably noticed, Thai people have very casual attitudes when it comes to refrigerating food.  On several occasions I've had GI issues after eating cheeses, yogurt etc from Tops, Big C etc. - places you'd think would be safe.  My take was that just because something is cold in the deli case doesn't mean it didn't sit out on the loading dock in 90+ degree heat for a few hours.

Well done steaks are a crime against humanity!

Didn't have a similar problem for quite a while. But what works like a miracle for me is drinking a Coke (to stabilize stomach PH) and eat a huge well done steak!!  Not the worst remedy 

I will do as much as I can to stay well and reduce the risks, but I am going to do what I'm going to do and if I get sick I will be disapointed but just deal with it like I have in the past. My main hope is that if I do get sick it's short term and curable (food poisoining, crabs or the like), rather than treatable but not curable (AIDs, Hepatitus) I have been vacinated for a much as I can and take PREP and DoxyPEP when in Thailand  

After a while there's only so much we can do to avoid being sick, especially if one of the focus of your trips is having as much sex as possible. Good luck staying well on your next trip Steve but most of all I hope you have a lot of fun and made plenty of excellent memories even though that means we have to take the bad along with the good occasionally.